diff --git a/pump/combov2/src/main/kotlin/info/nightscout/pump/combov2/ComboV2Plugin.kt b/pump/combov2/src/main/kotlin/info/nightscout/pump/combov2/ComboV2Plugin.kt
index cf7def4f64..9f04934b82 100644
--- a/pump/combov2/src/main/kotlin/info/nightscout/pump/combov2/ComboV2Plugin.kt
+++ b/pump/combov2/src/main/kotlin/info/nightscout/pump/combov2/ComboV2Plugin.kt
@@ -1012,6 +1012,10 @@ class ComboV2Plugin @Inject constructor(
     }
 
     override fun deliverTreatment(detailedBolusInfo: DetailedBolusInfo): PumpEnactResult {
+        // Insulin value must be greater than 0
+        require(detailedBolusInfo.carbs == 0.0) { detailedBolusInfo.toString() }
+        require(detailedBolusInfo.insulin > 0) { detailedBolusInfo.toString() }
+
         val oldInsulinAmount = detailedBolusInfo.insulin
         detailedBolusInfo.insulin = constraintChecker
             .applyBolusConstraints(ConstraintObject(detailedBolusInfo.insulin, aapsLogger))
@@ -1021,14 +1025,6 @@ class ComboV2Plugin @Inject constructor(
             "Applied bolus constraints:  old insulin amount: $oldInsulinAmount  new: ${detailedBolusInfo.insulin}"
         )
 
-        // Carbs are not allowed because the Combo does not record carbs.
-        // This is defined in the ACCU_CHEK_COMBO PumpType enum's
-        // pumpCapability field, so AndroidAPS is informed about this
-        // lack of carb storage capability. We therefore do not expect
-        // nonzero carbs here.
-        // (Also, a zero insulin value makes no sense when bolusing.)
-        require((detailedBolusInfo.insulin > 0) && (detailedBolusInfo.carbs <= 0.0)) { detailedBolusInfo.toString() }
-
         val acquiredPump = getAcquiredPump()
 
         val requestedBolusAmount = detailedBolusInfo.insulin.iuToCctlBolus()
diff --git a/pump/danar/src/main/java/info/nightscout/androidaps/danaRKorean/DanaRKoreanPlugin.kt b/pump/danar/src/main/java/info/nightscout/androidaps/danaRKorean/DanaRKoreanPlugin.kt
index 3676a77d3e..04920c92a4 100644
--- a/pump/danar/src/main/java/info/nightscout/androidaps/danaRKorean/DanaRKoreanPlugin.kt
+++ b/pump/danar/src/main/java/info/nightscout/androidaps/danaRKorean/DanaRKoreanPlugin.kt
@@ -147,45 +147,41 @@ class DanaRKoreanPlugin @Inject constructor(
     }
 
     override fun deliverTreatment(detailedBolusInfo: DetailedBolusInfo): PumpEnactResult {
+        // Insulin value must be greater than 0
+        require(detailedBolusInfo.carbs == 0.0) { detailedBolusInfo.toString() }
+        require(detailedBolusInfo.insulin > 0) { detailedBolusInfo.toString() }
+
         detailedBolusInfo.insulin = constraintChecker.applyBolusConstraints(ConstraintObject(detailedBolusInfo.insulin, aapsLogger)).value()
-        require(detailedBolusInfo.carbs > 0)
-        return if (detailedBolusInfo.insulin > 0) {
-            val t = EventOverviewBolusProgress.Treatment(0.0, 0, detailedBolusInfo.bolusType == DetailedBolusInfo.BolusType.SMB, detailedBolusInfo.id)
-            var connectionOK = false
-            if (detailedBolusInfo.insulin > 0)
-                connectionOK = sExecutionService.bolus(
-                    detailedBolusInfo.insulin, detailedBolusInfo.carbs.toInt(), detailedBolusInfo.carbsTimestamp
-                        ?: detailedBolusInfo.timestamp, t
-                )
-            val result = PumpEnactResult(injector)
-            result.success(connectionOK && abs(detailedBolusInfo.insulin - t.insulin) < pumpDescription.bolusStep)
-                .bolusDelivered(t.insulin)
-            if (!result.success) result.comment(
-                rh.gs(
-                    info.nightscout.pump.dana.R.string.boluserrorcode,
-                    detailedBolusInfo.insulin,
-                    t.insulin,
-                    danaPump.bolusStartErrorCode
-                )
-            ) else result.comment(app.aaps.core.ui.R.string.ok)
-            aapsLogger.debug(LTag.PUMP, "deliverTreatment: OK. Asked: " + detailedBolusInfo.insulin + " Delivered: " + result.bolusDelivered)
-            detailedBolusInfo.insulin = t.insulin
-            detailedBolusInfo.timestamp = dateUtil.now()
-            if (detailedBolusInfo.insulin > 0) pumpSync.syncBolusWithPumpId(
-                detailedBolusInfo.timestamp,
-                detailedBolusInfo.insulin,
-                detailedBolusInfo.bolusType,
-                dateUtil.now(),
-                PumpType.DANA_R_KOREAN,
-                serialNumber()
+        val t = EventOverviewBolusProgress.Treatment(0.0, 0, detailedBolusInfo.bolusType == DetailedBolusInfo.BolusType.SMB, detailedBolusInfo.id)
+        var connectionOK = false
+        if (detailedBolusInfo.insulin > 0)
+            connectionOK = sExecutionService.bolus(
+                detailedBolusInfo.insulin, detailedBolusInfo.carbs.toInt(), detailedBolusInfo.carbsTimestamp
+                    ?: detailedBolusInfo.timestamp, t
             )
-            result
-        } else {
-            val result = PumpEnactResult(injector)
-            result.success(false).bolusDelivered(0.0).comment(app.aaps.core.ui.R.string.invalid_input)
-            aapsLogger.error("deliverTreatment: Invalid input")
-            result
-        }
+        val result = PumpEnactResult(injector)
+        result.success(connectionOK && abs(detailedBolusInfo.insulin - t.insulin) < pumpDescription.bolusStep)
+            .bolusDelivered(t.insulin)
+        if (!result.success) result.comment(
+            rh.gs(
+                info.nightscout.pump.dana.R.string.boluserrorcode,
+                detailedBolusInfo.insulin,
+                t.insulin,
+                danaPump.bolusStartErrorCode
+            )
+        ) else result.comment(app.aaps.core.ui.R.string.ok)
+        aapsLogger.debug(LTag.PUMP, "deliverTreatment: OK. Asked: " + detailedBolusInfo.insulin + " Delivered: " + result.bolusDelivered)
+        detailedBolusInfo.insulin = t.insulin
+        detailedBolusInfo.timestamp = dateUtil.now()
+        if (detailedBolusInfo.insulin > 0) pumpSync.syncBolusWithPumpId(
+            detailedBolusInfo.timestamp,
+            detailedBolusInfo.insulin,
+            detailedBolusInfo.bolusType,
+            dateUtil.now(),
+            PumpType.DANA_R_KOREAN,
+            serialNumber()
+        )
+        return result
     }
 
     // This is called from APS
diff --git a/pump/danar/src/main/java/info/nightscout/androidaps/danaRv2/DanaRv2Plugin.java b/pump/danar/src/main/java/info/nightscout/androidaps/danaRv2/DanaRv2Plugin.java
index 8c6649f95d..e3474f695c 100644
--- a/pump/danar/src/main/java/info/nightscout/androidaps/danaRv2/DanaRv2Plugin.java
+++ b/pump/danar/src/main/java/info/nightscout/androidaps/danaRv2/DanaRv2Plugin.java
@@ -159,54 +159,50 @@ public class DanaRv2Plugin extends AbstractDanaRPlugin {
     // Pump interface
     @NonNull @Override
     public PumpEnactResult deliverTreatment(DetailedBolusInfo detailedBolusInfo) {
-        detailedBolusInfo.insulin = constraintChecker.applyBolusConstraints(new ConstraintObject<>(detailedBolusInfo.insulin, getAapsLogger())).value();
-        if (detailedBolusInfo.insulin > 0 || detailedBolusInfo.carbs > 0) {
-            // v2 stores end time for bolus, we need to adjust time
-            // default delivery speed is 12 sec/U
-            int preferencesSpeed = sp.getInt(info.nightscout.pump.dana.R.string.key_danars_bolusspeed, 0);
-            int speed = 12;
-            switch (preferencesSpeed) {
-                case 0:
-                    speed = 12;
-                    break;
-                case 1:
-                    speed = 30;
-                    break;
-                case 2:
-                    speed = 60;
-                    break;
-            }
-            detailedBolusInfo.timestamp = dateUtil.now() + (long) (speed * detailedBolusInfo.insulin * 1000);
-            // clean carbs to prevent counting them as twice because they will picked up as another record
-            // I don't think it's necessary to copy DetailedBolusInfo right now for carbs records
-            double carbs = detailedBolusInfo.carbs;
-            detailedBolusInfo.carbs = 0;
-            long carbTimeStamp = detailedBolusInfo.getCarbsTimestamp() != null ? detailedBolusInfo.getCarbsTimestamp() : detailedBolusInfo.timestamp;
-            if (carbTimeStamp == detailedBolusInfo.timestamp) carbTimeStamp -= T.Companion.mins(1).msecs(); // better set 1 min back to prevents clash with insulin
-
-            detailedBolusInfoStorage.add(detailedBolusInfo); // will be picked up on reading history
-
-            EventOverviewBolusProgress.Treatment t = new EventOverviewBolusProgress.Treatment(0, 0, detailedBolusInfo.getBolusType() == DetailedBolusInfo.BolusType.SMB, detailedBolusInfo.getId());
-            boolean connectionOK = false;
-            if (detailedBolusInfo.insulin > 0 || carbs > 0)
-                connectionOK = sExecutionService.bolus(detailedBolusInfo.insulin, (int) carbs, carbTimeStamp, t);
-            PumpEnactResult result = new PumpEnactResult(getInjector());
-            result.success(connectionOK && Math.abs(detailedBolusInfo.insulin - t.getInsulin()) < pumpDescription.getBolusStep())
-                    .bolusDelivered(t.getInsulin());
-            if (!result.getSuccess())
-                result.comment(rh.gs(info.nightscout.pump.dana.R.string.boluserrorcode, detailedBolusInfo.insulin, t.getInsulin(),
-                        danaPump.getBolusStartErrorCode()));
-            else
-                result.comment(app.aaps.core.ui.R.string.ok);
-            aapsLogger.debug(LTag.PUMP, "deliverTreatment: OK. Asked: " + detailedBolusInfo.insulin + " Delivered: " + result.getBolusDelivered());
-            // remove carbs because it's get from history separately
-            return result;
-        } else {
-            PumpEnactResult result = new PumpEnactResult(getInjector());
-            result.success(false).bolusDelivered(0d).comment(app.aaps.core.ui.R.string.invalid_input);
-            aapsLogger.error("deliverTreatment: Invalid input");
-            return result;
+        if (detailedBolusInfo.insulin == 0 || detailedBolusInfo.carbs > 0) {
+            throw new IllegalArgumentException(detailedBolusInfo.toString(), new Exception());
         }
+        detailedBolusInfo.insulin = constraintChecker.applyBolusConstraints(new ConstraintObject<>(detailedBolusInfo.insulin, getAapsLogger())).value();
+        // v2 stores end time for bolus, we need to adjust time
+        // default delivery speed is 12 sec/U
+        int preferencesSpeed = sp.getInt(info.nightscout.pump.dana.R.string.key_danars_bolusspeed, 0);
+        int speed = 12;
+        switch (preferencesSpeed) {
+            case 0:
+                speed = 12;
+                break;
+            case 1:
+                speed = 30;
+                break;
+            case 2:
+                speed = 60;
+                break;
+        }
+        detailedBolusInfo.timestamp = dateUtil.now() + (long) (speed * detailedBolusInfo.insulin * 1000);
+        // clean carbs to prevent counting them as twice because they will picked up as another record
+        // I don't think it's necessary to copy DetailedBolusInfo right now for carbs records
+        double carbs = detailedBolusInfo.carbs;
+        detailedBolusInfo.carbs = 0;
+        long carbTimeStamp = detailedBolusInfo.getCarbsTimestamp() != null ? detailedBolusInfo.getCarbsTimestamp() : detailedBolusInfo.timestamp;
+        if (carbTimeStamp == detailedBolusInfo.timestamp) carbTimeStamp -= T.Companion.mins(1).msecs(); // better set 1 min back to prevents clash with insulin
+
+        detailedBolusInfoStorage.add(detailedBolusInfo); // will be picked up on reading history
+
+        EventOverviewBolusProgress.Treatment t = new EventOverviewBolusProgress.Treatment(0, 0, detailedBolusInfo.getBolusType() == DetailedBolusInfo.BolusType.SMB, detailedBolusInfo.getId());
+        boolean connectionOK = false;
+        if (detailedBolusInfo.insulin > 0 || carbs > 0)
+            connectionOK = sExecutionService.bolus(detailedBolusInfo.insulin, (int) carbs, carbTimeStamp, t);
+        PumpEnactResult result = new PumpEnactResult(getInjector());
+        result.success(connectionOK && Math.abs(detailedBolusInfo.insulin - t.getInsulin()) < pumpDescription.getBolusStep())
+                .bolusDelivered(t.getInsulin());
+        if (!result.getSuccess())
+            result.comment(rh.gs(info.nightscout.pump.dana.R.string.boluserrorcode, detailedBolusInfo.insulin, t.getInsulin(),
+                    danaPump.getBolusStartErrorCode()));
+        else
+            result.comment(app.aaps.core.ui.R.string.ok);
+        aapsLogger.debug(LTag.PUMP, "deliverTreatment: OK. Asked: " + detailedBolusInfo.insulin + " Delivered: " + result.getBolusDelivered());
+        // remove carbs because it's get from history separately
+        return result;
     }
 
     @Override
diff --git a/pump/danar/src/main/java/info/nightscout/androidaps/danar/DanaRPlugin.java b/pump/danar/src/main/java/info/nightscout/androidaps/danar/DanaRPlugin.java
index 9463c6c121..59434f381e 100644
--- a/pump/danar/src/main/java/info/nightscout/androidaps/danar/DanaRPlugin.java
+++ b/pump/danar/src/main/java/info/nightscout/androidaps/danar/DanaRPlugin.java
@@ -160,44 +160,40 @@ public class DanaRPlugin extends AbstractDanaRPlugin {
 
     @NonNull @Override
     public PumpEnactResult deliverTreatment(DetailedBolusInfo detailedBolusInfo) {
-        detailedBolusInfo.insulin = constraintChecker.applyBolusConstraints(new ConstraintObject<>(detailedBolusInfo.insulin, getAapsLogger())).value();
-        if (detailedBolusInfo.insulin > 0 || detailedBolusInfo.carbs > 0) {
-            EventOverviewBolusProgress.Treatment t = new EventOverviewBolusProgress.Treatment(0, 0, detailedBolusInfo.getBolusType() == DetailedBolusInfo.BolusType.SMB, detailedBolusInfo.getId());
-            boolean connectionOK = false;
-            if (detailedBolusInfo.insulin > 0 || detailedBolusInfo.carbs > 0)
-                connectionOK = sExecutionService.bolus(detailedBolusInfo.insulin, (int) detailedBolusInfo.carbs, detailedBolusInfo.getCarbsTimestamp() != null ? detailedBolusInfo.getCarbsTimestamp() : detailedBolusInfo.timestamp, t);
-            PumpEnactResult result = new PumpEnactResult(getInjector());
-            result.success(connectionOK && Math.abs(detailedBolusInfo.insulin - t.getInsulin()) < pumpDescription.getBolusStep())
-                    .bolusDelivered(t.getInsulin());
-            if (!result.getSuccess())
-                result.comment(rh.gs(info.nightscout.pump.dana.R.string.boluserrorcode, detailedBolusInfo.insulin, t.getInsulin(), danaPump.getBolusStartErrorCode()));
-            else
-                result.comment(app.aaps.core.ui.R.string.ok);
-            aapsLogger.debug(LTag.PUMP, "deliverTreatment: OK. Asked: " + detailedBolusInfo.insulin + " Delivered: " + result.getBolusDelivered());
-            detailedBolusInfo.insulin = t.getInsulin();
-            detailedBolusInfo.timestamp = System.currentTimeMillis();
-            if (detailedBolusInfo.insulin > 0)
-                pumpSync.syncBolusWithPumpId(
-                        detailedBolusInfo.timestamp,
-                        detailedBolusInfo.insulin,
-                        detailedBolusInfo.getBolusType(),
-                        dateUtil.now(),
-                        PumpType.DANA_R,
-                        serialNumber());
-            if (detailedBolusInfo.carbs > 0)
-                pumpSync.syncCarbsWithTimestamp(
-                        detailedBolusInfo.getCarbsTimestamp() != null ? detailedBolusInfo.getCarbsTimestamp() : detailedBolusInfo.timestamp,
-                        detailedBolusInfo.carbs,
-                        null,
-                        PumpType.DANA_R,
-                        serialNumber());
-            return result;
-        } else {
-            PumpEnactResult result = new PumpEnactResult(getInjector());
-            result.success(false).bolusDelivered(0d).comment(app.aaps.core.ui.R.string.invalid_input);
-            aapsLogger.error("deliverTreatment: Invalid input");
-            return result;
+        if (detailedBolusInfo.insulin == 0 || detailedBolusInfo.carbs > 0) {
+            throw new IllegalArgumentException(detailedBolusInfo.toString(), new Exception());
         }
+        detailedBolusInfo.insulin = constraintChecker.applyBolusConstraints(new ConstraintObject<>(detailedBolusInfo.insulin, getAapsLogger())).value();
+        EventOverviewBolusProgress.Treatment t = new EventOverviewBolusProgress.Treatment(0, 0, detailedBolusInfo.getBolusType() == DetailedBolusInfo.BolusType.SMB, detailedBolusInfo.getId());
+        boolean connectionOK = false;
+        if (detailedBolusInfo.insulin > 0)
+            connectionOK = sExecutionService.bolus(detailedBolusInfo.insulin, (int) detailedBolusInfo.carbs, detailedBolusInfo.getCarbsTimestamp() != null ? detailedBolusInfo.getCarbsTimestamp() : detailedBolusInfo.timestamp, t);
+        PumpEnactResult result = new PumpEnactResult(getInjector());
+        result.success(connectionOK && Math.abs(detailedBolusInfo.insulin - t.getInsulin()) < pumpDescription.getBolusStep())
+                .bolusDelivered(t.getInsulin());
+        if (!result.getSuccess())
+            result.comment(rh.gs(info.nightscout.pump.dana.R.string.boluserrorcode, detailedBolusInfo.insulin, t.getInsulin(), danaPump.getBolusStartErrorCode()));
+        else
+            result.comment(app.aaps.core.ui.R.string.ok);
+        aapsLogger.debug(LTag.PUMP, "deliverTreatment: OK. Asked: " + detailedBolusInfo.insulin + " Delivered: " + result.getBolusDelivered());
+        detailedBolusInfo.insulin = t.getInsulin();
+        detailedBolusInfo.timestamp = System.currentTimeMillis();
+        if (detailedBolusInfo.insulin > 0)
+            pumpSync.syncBolusWithPumpId(
+                    detailedBolusInfo.timestamp,
+                    detailedBolusInfo.insulin,
+                    detailedBolusInfo.getBolusType(),
+                    dateUtil.now(),
+                    PumpType.DANA_R,
+                    serialNumber());
+        if (detailedBolusInfo.carbs > 0)
+            pumpSync.syncCarbsWithTimestamp(
+                    detailedBolusInfo.getCarbsTimestamp() != null ? detailedBolusInfo.getCarbsTimestamp() : detailedBolusInfo.timestamp,
+                    detailedBolusInfo.carbs,
+                    null,
+                    PumpType.DANA_R,
+                    serialNumber());
+        return result;
     }
 
     // This is called from APS
diff --git a/pump/danars/src/main/java/info/nightscout/pump/danars/DanaRSPlugin.kt b/pump/danars/src/main/java/info/nightscout/pump/danars/DanaRSPlugin.kt
index acd242c277..7f5f481452 100644
--- a/pump/danars/src/main/java/info/nightscout/pump/danars/DanaRSPlugin.kt
+++ b/pump/danars/src/main/java/info/nightscout/pump/danars/DanaRSPlugin.kt
@@ -288,52 +288,47 @@ class DanaRSPlugin @Inject constructor(
 
     @Synchronized
     override fun deliverTreatment(detailedBolusInfo: DetailedBolusInfo): PumpEnactResult {
+        // Insulin value must be greater than 0
+        require(detailedBolusInfo.carbs == 0.0) { detailedBolusInfo.toString() }
+        require(detailedBolusInfo.insulin > 0) { detailedBolusInfo.toString() }
+
         detailedBolusInfo.insulin = constraintChecker.applyBolusConstraints(ConstraintObject(detailedBolusInfo.insulin, aapsLogger)).value()
-        return if (detailedBolusInfo.insulin > 0 || detailedBolusInfo.carbs > 0) {
-            val preferencesSpeed = sp.getInt(info.nightscout.pump.dana.R.string.key_danars_bolusspeed, 0)
-            var speed = 12
-            when (preferencesSpeed) {
-                0 -> speed = 12
-                1 -> speed = 30
-                2 -> speed = 60
-            }
-            // RS stores end time for bolus, we need to adjust time
-            // default delivery speed is 12 sec/U
-            detailedBolusInfo.timestamp = dateUtil.now() + (speed * detailedBolusInfo.insulin * 1000).toLong()
-            // clean carbs to prevent counting them as twice because they will picked up as another record
-            // I don't think it's necessary to copy DetailedBolusInfo right now for carbs records
-            val carbs = detailedBolusInfo.carbs
-            detailedBolusInfo.carbs = 0.0
-            var carbTimeStamp = detailedBolusInfo.carbsTimestamp ?: detailedBolusInfo.timestamp
-            if (carbTimeStamp == detailedBolusInfo.timestamp) carbTimeStamp -= T.mins(1).msecs() // better set 1 min back to prevents clash with insulin
-            detailedBolusInfoStorage.add(detailedBolusInfo) // will be picked up on reading history
-            val t = EventOverviewBolusProgress.Treatment(0.0, 0, detailedBolusInfo.bolusType == DetailedBolusInfo.BolusType.SMB, detailedBolusInfo.id)
-            var connectionOK = false
-            if (detailedBolusInfo.insulin > 0 || carbs > 0) connectionOK = danaRSService?.bolus(detailedBolusInfo.insulin, carbs.toInt(), carbTimeStamp, t)
-                ?: false
-            val result = PumpEnactResult(injector)
-            result.success = connectionOK && abs(detailedBolusInfo.insulin - t.insulin) < pumpDescription.bolusStep
-            result.bolusDelivered = t.insulin
-            if (!result.success) {
-                var error = "" + danaPump.bolusStartErrorCode
-                when (danaPump.bolusStartErrorCode) {
-                    0x10 -> error = rh.gs(info.nightscout.pump.dana.R.string.maxbolusviolation)
-                    0x20 -> error = rh.gs(info.nightscout.pump.dana.R.string.commanderror)
-                    0x40 -> error = rh.gs(info.nightscout.pump.dana.R.string.speederror)
-                    0x80 -> error = rh.gs(info.nightscout.pump.dana.R.string.insulinlimitviolation)
-                }
-                result.comment = rh.gs(info.nightscout.pump.dana.R.string.boluserrorcode, detailedBolusInfo.insulin, t.insulin, error)
-            } else result.comment = rh.gs(app.aaps.core.ui.R.string.ok)
-            aapsLogger.debug(LTag.PUMP, "deliverTreatment: OK. Asked: " + detailedBolusInfo.insulin + " Delivered: " + result.bolusDelivered)
-            result
-        } else {
-            val result = PumpEnactResult(injector)
-            result.success = false
-            result.bolusDelivered = 0.0
-            result.comment = rh.gs(app.aaps.core.ui.R.string.invalid_input)
-            aapsLogger.error("deliverTreatment: Invalid input")
-            result
+        val preferencesSpeed = sp.getInt(info.nightscout.pump.dana.R.string.key_danars_bolusspeed, 0)
+        var speed = 12
+        when (preferencesSpeed) {
+            0 -> speed = 12
+            1 -> speed = 30
+            2 -> speed = 60
         }
+        // RS stores end time for bolus, we need to adjust time
+        // default delivery speed is 12 sec/U
+        detailedBolusInfo.timestamp = dateUtil.now() + (speed * detailedBolusInfo.insulin * 1000).toLong()
+        // clean carbs to prevent counting them as twice because they will picked up as another record
+        // I don't think it's necessary to copy DetailedBolusInfo right now for carbs records
+        val carbs = detailedBolusInfo.carbs
+        detailedBolusInfo.carbs = 0.0
+        var carbTimeStamp = detailedBolusInfo.carbsTimestamp ?: detailedBolusInfo.timestamp
+        if (carbTimeStamp == detailedBolusInfo.timestamp) carbTimeStamp -= T.mins(1).msecs() // better set 1 min back to prevents clash with insulin
+        detailedBolusInfoStorage.add(detailedBolusInfo) // will be picked up on reading history
+        val t = EventOverviewBolusProgress.Treatment(0.0, 0, detailedBolusInfo.bolusType == DetailedBolusInfo.BolusType.SMB, detailedBolusInfo.id)
+        var connectionOK = false
+        if (detailedBolusInfo.insulin > 0 || carbs > 0) connectionOK = danaRSService?.bolus(detailedBolusInfo.insulin, carbs.toInt(), carbTimeStamp, t)
+            ?: false
+        val result = PumpEnactResult(injector)
+        result.success = connectionOK && abs(detailedBolusInfo.insulin - t.insulin) < pumpDescription.bolusStep
+        result.bolusDelivered = t.insulin
+        if (!result.success) {
+            var error = "" + danaPump.bolusStartErrorCode
+            when (danaPump.bolusStartErrorCode) {
+                0x10 -> error = rh.gs(info.nightscout.pump.dana.R.string.maxbolusviolation)
+                0x20 -> error = rh.gs(info.nightscout.pump.dana.R.string.commanderror)
+                0x40 -> error = rh.gs(info.nightscout.pump.dana.R.string.speederror)
+                0x80 -> error = rh.gs(info.nightscout.pump.dana.R.string.insulinlimitviolation)
+            }
+            result.comment = rh.gs(info.nightscout.pump.dana.R.string.boluserrorcode, detailedBolusInfo.insulin, t.insulin, error)
+        } else result.comment = rh.gs(app.aaps.core.ui.R.string.ok)
+        aapsLogger.debug(LTag.PUMP, "deliverTreatment: OK. Asked: " + detailedBolusInfo.insulin + " Delivered: " + result.bolusDelivered)
+        return result
     }
 
     override fun stopBolusDelivering() {
diff --git a/pump/diaconn/src/main/java/info/nightscout/pump/diaconn/DiaconnG8Plugin.kt b/pump/diaconn/src/main/java/info/nightscout/pump/diaconn/DiaconnG8Plugin.kt
index 96ebe852ac..1ebe750078 100644
--- a/pump/diaconn/src/main/java/info/nightscout/pump/diaconn/DiaconnG8Plugin.kt
+++ b/pump/diaconn/src/main/java/info/nightscout/pump/diaconn/DiaconnG8Plugin.kt
@@ -271,35 +271,30 @@ class DiaconnG8Plugin @Inject constructor(
 
     @Synchronized
     override fun deliverTreatment(detailedBolusInfo: DetailedBolusInfo): PumpEnactResult {
-        detailedBolusInfo.insulin = constraintChecker.applyBolusConstraints(ConstraintObject(detailedBolusInfo.insulin, aapsLogger)).value()
-        return if (detailedBolusInfo.insulin > 0 || detailedBolusInfo.carbs > 0) {
-            val carbs = detailedBolusInfo.carbs
-            detailedBolusInfo.carbs = 0.0
-            var carbTimeStamp = detailedBolusInfo.carbsTimestamp ?: detailedBolusInfo.timestamp
-            if (carbTimeStamp == detailedBolusInfo.timestamp) carbTimeStamp -= T.mins(1).msecs() // better set 1 min back to prevents clash with insulin
-            detailedBolusInfoStorage.add(detailedBolusInfo) // will be picked up on reading history
-            val t = EventOverviewBolusProgress.Treatment(0.0, 0, detailedBolusInfo.bolusType == DetailedBolusInfo.BolusType.SMB, detailedBolusInfo.id)
-            var connectionOK = false
-            if (detailedBolusInfo.insulin > 0 || carbs > 0) connectionOK = diaconnG8Service?.bolus(detailedBolusInfo.insulin, carbs.toInt(), carbTimeStamp, t)
-                ?: false
-            val result = PumpEnactResult(injector)
-            result.success = connectionOK
-            result.bolusDelivered = t.insulin
+        // Insulin value must be greater than 0
+        require(detailedBolusInfo.carbs == 0.0) { detailedBolusInfo.toString() }
+        require(detailedBolusInfo.insulin > 0) { detailedBolusInfo.toString() }
 
-            if (result.success) result.enacted = true
-            if (!result.success) {
-                setErrorMsg(diaconnG8Pump.resultErrorCode, result)
-            } else result.comment = rh.gs(app.aaps.core.ui.R.string.ok)
-            aapsLogger.debug(LTag.PUMP, "deliverTreatment: OK. Asked: " + detailedBolusInfo.insulin + " Delivered: " + result.bolusDelivered)
-            result
-        } else {
-            val result = PumpEnactResult(injector)
-            result.success = false
-            result.bolusDelivered = 0.0
-            result.comment = rh.gs(app.aaps.core.ui.R.string.invalid_input)
-            aapsLogger.error("deliverTreatment: Invalid input")
-            result
-        }
+        detailedBolusInfo.insulin = constraintChecker.applyBolusConstraints(ConstraintObject(detailedBolusInfo.insulin, aapsLogger)).value()
+        val carbs = detailedBolusInfo.carbs
+        detailedBolusInfo.carbs = 0.0
+        var carbTimeStamp = detailedBolusInfo.carbsTimestamp ?: detailedBolusInfo.timestamp
+        if (carbTimeStamp == detailedBolusInfo.timestamp) carbTimeStamp -= T.mins(1).msecs() // better set 1 min back to prevents clash with insulin
+        detailedBolusInfoStorage.add(detailedBolusInfo) // will be picked up on reading history
+        val t = EventOverviewBolusProgress.Treatment(0.0, 0, detailedBolusInfo.bolusType == DetailedBolusInfo.BolusType.SMB, detailedBolusInfo.id)
+        var connectionOK = false
+        if (detailedBolusInfo.insulin > 0 || carbs > 0) connectionOK = diaconnG8Service?.bolus(detailedBolusInfo.insulin, carbs.toInt(), carbTimeStamp, t)
+            ?: false
+        val result = PumpEnactResult(injector)
+        result.success = connectionOK
+        result.bolusDelivered = t.insulin
+
+        if (result.success) result.enacted = true
+        if (!result.success) {
+            setErrorMsg(diaconnG8Pump.resultErrorCode, result)
+        } else result.comment = rh.gs(app.aaps.core.ui.R.string.ok)
+        aapsLogger.debug(LTag.PUMP, "deliverTreatment: OK. Asked: " + detailedBolusInfo.insulin + " Delivered: " + result.bolusDelivered)
+        return result
     }
 
     override fun stopBolusDelivering() {
diff --git a/pump/eopatch/src/main/java/info/nightscout/androidaps/plugins/pump/eopatch/EopatchPumpPlugin.kt b/pump/eopatch/src/main/java/info/nightscout/androidaps/plugins/pump/eopatch/EopatchPumpPlugin.kt
index 89d28165fd..a183f3b064 100644
--- a/pump/eopatch/src/main/java/info/nightscout/androidaps/plugins/pump/eopatch/EopatchPumpPlugin.kt
+++ b/pump/eopatch/src/main/java/info/nightscout/androidaps/plugins/pump/eopatch/EopatchPumpPlugin.kt
@@ -270,61 +270,58 @@ class EopatchPumpPlugin @Inject constructor(
         }
 
     override fun deliverTreatment(detailedBolusInfo: DetailedBolusInfo): PumpEnactResult {
+        // Insulin value must be greater than 0
+        require(detailedBolusInfo.carbs == 0.0) { detailedBolusInfo.toString() }
+        require(detailedBolusInfo.insulin > 0) { detailedBolusInfo.toString() }
 
         val askedInsulin = detailedBolusInfo.insulin
-        if (detailedBolusInfo.insulin > 0.0) {
-            var isSuccess = true
-            val result = BehaviorSubject.createDefault(true)
-            val disposable = result.hide()
-                .subscribe {
-                    isSuccess = it
-                }
-
-            mDisposables.add(patchManager.startCalculatorBolus(detailedBolusInfo)
-                                 .doOnSuccess {
-                                     mLastDataTime = System.currentTimeMillis()
-                                 }.subscribe({
-                                                 result.onNext(it.isSuccess)
-                                             }, {
-                                                 result.onNext(false)
-                                             })
-            )
-
-            val tr = detailedBolusInfo.let {
-                EventOverviewBolusProgress.Treatment(it.insulin, it.carbs.toInt(), it.bolusType === DetailedBolusInfo.BolusType.SMB, it.id)
+        var isSuccess = true
+        val result = BehaviorSubject.createDefault(true)
+        val disposable = result.hide()
+            .subscribe {
+                isSuccess = it
             }
 
-            do {
-                SystemClock.sleep(100)
-                if (patchManager.patchConnectionState.isConnected) {
-                    val delivering = patchManager.bolusCurrent.nowBolus.injected
-                    rxBus.send(EventOverviewBolusProgress.apply {
-                        status = rh.gs(app.aaps.core.ui.R.string.bolus_delivering, delivering)
-                        percent = min((delivering / detailedBolusInfo.insulin * 100).toInt(), 100)
-                        t = tr
-                    })
-                }
-            } while (!patchManager.bolusCurrent.nowBolus.endTimeSynced && isSuccess)
+        mDisposables.add(patchManager.startCalculatorBolus(detailedBolusInfo)
+                             .doOnSuccess {
+                                 mLastDataTime = System.currentTimeMillis()
+                             }.subscribe({
+                                             result.onNext(it.isSuccess)
+                                         }, {
+                                             result.onNext(false)
+                                         })
+        )
 
-            rxBus.send(EventOverviewBolusProgress.apply {
-                status = rh.gs(app.aaps.core.ui.R.string.bolus_delivered_successfully, detailedBolusInfo.insulin)
-                percent = 100
-            })
-
-            detailedBolusInfo.insulin = patchManager.bolusCurrent.nowBolus.injected.toDouble()
-            patchManager.addBolusToHistory(detailedBolusInfo)
-
-            disposable.dispose()
-
-            return if (isSuccess && abs(askedInsulin - detailedBolusInfo.insulin) < pumpDescription.bolusStep)
-                PumpEnactResult(injector).success(true).enacted(true).bolusDelivered(askedInsulin)
-            else
-                PumpEnactResult(injector).success(false)/*.enacted(false)*/.bolusDelivered(Round.roundTo(detailedBolusInfo.insulin, 0.01))
-
-        } else {
-            // no bolus required
-            return PumpEnactResult(injector).success(false).enacted(false).bolusDelivered(0.0).comment(rh.gs(app.aaps.core.ui.R.string.error))
+        val tr = detailedBolusInfo.let {
+            EventOverviewBolusProgress.Treatment(it.insulin, it.carbs.toInt(), it.bolusType === DetailedBolusInfo.BolusType.SMB, it.id)
         }
+
+        do {
+            SystemClock.sleep(100)
+            if (patchManager.patchConnectionState.isConnected) {
+                val delivering = patchManager.bolusCurrent.nowBolus.injected
+                rxBus.send(EventOverviewBolusProgress.apply {
+                    status = rh.gs(app.aaps.core.ui.R.string.bolus_delivering, delivering)
+                    percent = min((delivering / detailedBolusInfo.insulin * 100).toInt(), 100)
+                    t = tr
+                })
+            }
+        } while (!patchManager.bolusCurrent.nowBolus.endTimeSynced && isSuccess)
+
+        rxBus.send(EventOverviewBolusProgress.apply {
+            status = rh.gs(app.aaps.core.ui.R.string.bolus_delivered_successfully, detailedBolusInfo.insulin)
+            percent = 100
+        })
+
+        detailedBolusInfo.insulin = patchManager.bolusCurrent.nowBolus.injected.toDouble()
+        patchManager.addBolusToHistory(detailedBolusInfo)
+
+        disposable.dispose()
+
+        return if (isSuccess && abs(askedInsulin - detailedBolusInfo.insulin) < pumpDescription.bolusStep)
+            PumpEnactResult(injector).success(true).enacted(true).bolusDelivered(askedInsulin)
+        else
+            PumpEnactResult(injector).success(false)/*.enacted(false)*/.bolusDelivered(Round.roundTo(detailedBolusInfo.insulin, 0.01))
     }
 
     override fun stopBolusDelivering() {
diff --git a/pump/medtrum/src/main/java/info/nightscout/pump/medtrum/MedtrumPlugin.kt b/pump/medtrum/src/main/java/info/nightscout/pump/medtrum/MedtrumPlugin.kt
index c237d9c2fd..bf15b3a240 100644
--- a/pump/medtrum/src/main/java/info/nightscout/pump/medtrum/MedtrumPlugin.kt
+++ b/pump/medtrum/src/main/java/info/nightscout/pump/medtrum/MedtrumPlugin.kt
@@ -268,7 +268,7 @@ import kotlin.math.abs
         val patchExpirationPref = preferenceFragment.findPreference<SwitchPreference>(rh.gs(R.string.key_patch_expiration))
         val pumpWarningNotificationPref = preferenceFragment.findPreference<SwitchPreference>(rh.gs(R.string.key_pump_warning_notification))
         val pumpWarningExpiryHourPref = preferenceFragment.findPreference<ValidatingEditTextPreference>(rh.gs(R.string.key_pump_warning_expiry_hour))
-        
+
         pumpWarningExpiryHourPref?.isEnabled = patchExpirationPref?.isChecked == true && pumpWarningNotificationPref?.isChecked == true
     }
 
@@ -377,33 +377,27 @@ import kotlin.math.abs
 
     @Synchronized
     override fun deliverTreatment(detailedBolusInfo: DetailedBolusInfo): PumpEnactResult {
+        // Insulin value must be greater than 0
+        require(detailedBolusInfo.carbs == 0.0) { detailedBolusInfo.toString() }
+        require(detailedBolusInfo.insulin > 0) { detailedBolusInfo.toString() }
+
         aapsLogger.debug(LTag.PUMP, "deliverTreatment: " + detailedBolusInfo.insulin + "U")
         if (!isInitialized()) return PumpEnactResult(injector).success(false).enacted(false)
         detailedBolusInfo.insulin = constraintChecker.applyBolusConstraints(ConstraintObject(detailedBolusInfo.insulin, aapsLogger)).value()
-        return if (detailedBolusInfo.insulin > 0 && detailedBolusInfo.carbs == 0.0) {
-            aapsLogger.debug(LTag.PUMP, "deliverTreatment: Delivering bolus: " + detailedBolusInfo.insulin + "U")
-            val t = EventOverviewBolusProgress.Treatment(0.0, 0, detailedBolusInfo.bolusType == DetailedBolusInfo.BolusType.SMB, detailedBolusInfo.id)
-            val connectionOK = medtrumService?.setBolus(detailedBolusInfo, t) ?: false
-            val result = PumpEnactResult(injector)
-            result.success = connectionOK && abs(detailedBolusInfo.insulin - t.insulin) < pumpDescription.bolusStep
-            result.bolusDelivered = t.insulin
-            if (!result.success) {
-                // Note: There are no error codes
-                result.comment = "failed"
-            } else {
-                result.comment = "ok"
-            }
-            aapsLogger.debug(LTag.PUMP, "deliverTreatment: OK. Success: ${result.success} Asked: ${detailedBolusInfo.insulin} Delivered: ${result.bolusDelivered}")
-            result
+        aapsLogger.debug(LTag.PUMP, "deliverTreatment: Delivering bolus: " + detailedBolusInfo.insulin + "U")
+        val t = EventOverviewBolusProgress.Treatment(0.0, 0, detailedBolusInfo.bolusType == DetailedBolusInfo.BolusType.SMB, detailedBolusInfo.id)
+        val connectionOK = medtrumService?.setBolus(detailedBolusInfo, t) ?: false
+        val result = PumpEnactResult(injector)
+        result.success = connectionOK && abs(detailedBolusInfo.insulin - t.insulin) < pumpDescription.bolusStep
+        result.bolusDelivered = t.insulin
+        if (!result.success) {
+            // Note: There are no error codes
+            result.comment = "failed"
         } else {
-            aapsLogger.debug(LTag.PUMP, "deliverTreatment: Invalid input")
-            val result = PumpEnactResult(injector)
-            result.success = false
-            result.bolusDelivered = 0.0
-            result.comment = rh.gs(app.aaps.core.ui.R.string.invalid_input)
-            aapsLogger.error("deliverTreatment: Invalid input")
-            result
+            result.comment = "ok"
         }
+        aapsLogger.debug(LTag.PUMP, "deliverTreatment: OK. Success: ${result.success} Asked: ${detailedBolusInfo.insulin} Delivered: ${result.bolusDelivered}")
+        return result
     }
 
     override fun stopBolusDelivering() {
diff --git a/pump/omnipod-dash/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/OmnipodDashPumpPlugin.kt b/pump/omnipod-dash/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/OmnipodDashPumpPlugin.kt
index 47a3f9c819..39cd00ef9a 100644
--- a/pump/omnipod-dash/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/OmnipodDashPumpPlugin.kt
+++ b/pump/omnipod-dash/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/dash/OmnipodDashPumpPlugin.kt
@@ -554,19 +554,13 @@ class OmnipodDashPumpPlugin @Inject constructor(
         get() = 0
 
     override fun deliverTreatment(detailedBolusInfo: DetailedBolusInfo): PumpEnactResult {
+        // Insulin value must be greater than 0
+        require(detailedBolusInfo.carbs == 0.0) { detailedBolusInfo.toString() }
+        require(detailedBolusInfo.insulin > 0) { detailedBolusInfo.toString() }
+
         try {
             bolusDeliveryInProgress = true
             aapsLogger.info(LTag.PUMP, "Delivering treatment: $detailedBolusInfo $bolusCanceled")
-            if (detailedBolusInfo.carbs > 0 ||
-                detailedBolusInfo.insulin == 0.0
-            ) {
-                // Accept only valid insulin requests
-                return PumpEnactResult(injector)
-                    .success(false)
-                    .enacted(false)
-                    .bolusDelivered(0.0)
-                    .comment("Invalid input")
-            }
             val requestedBolusAmount = detailedBolusInfo.insulin
             if (requestedBolusAmount > reservoirLevel) {
                 return PumpEnactResult(injector)
diff --git a/pump/omnipod-eros/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/eros/OmnipodErosPumpPlugin.java b/pump/omnipod-eros/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/eros/OmnipodErosPumpPlugin.java
index a308bb6b10..902d8829b9 100644
--- a/pump/omnipod-eros/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/eros/OmnipodErosPumpPlugin.java
+++ b/pump/omnipod-eros/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/eros/OmnipodErosPumpPlugin.java
@@ -22,7 +22,6 @@ import org.json.JSONException;
 import org.json.JSONObject;
 
 import java.util.List;
-import java.util.Locale;
 import java.util.Objects;
 import java.util.Optional;
 import java.util.function.Supplier;
@@ -661,29 +660,10 @@ public class OmnipodErosPumpPlugin extends PumpPluginBase implements Pump, Riley
 
     @NonNull @Override
     public PumpEnactResult deliverTreatment(DetailedBolusInfo detailedBolusInfo) {
-        if (detailedBolusInfo.insulin == 0 && detailedBolusInfo.carbs == 0) {
-            // neither carbs nor bolus requested
-            aapsLogger.error("deliverTreatment: Invalid input: neither carbs nor insulin are set in treatment");
-            return new PumpEnactResult(getInjector()).success(false).enacted(false).bolusDelivered(0d)
-                    .comment(app.aaps.core.ui.R.string.invalid_input);
-        } else if (detailedBolusInfo.insulin > 0) {
-            // bolus needed, ask pump to deliver it
-            return deliverBolus(detailedBolusInfo);
-        } else {
-            // no bolus required, carb only treatment
-            boolean result = pumpSync.syncCarbsWithTimestamp(
-                    detailedBolusInfo.timestamp,
-                    detailedBolusInfo.carbs,
-                    null,
-                    model(),
-                    serialNumber());
-
-            aapsLogger.debug(LTag.PUMP, String.format(Locale.ENGLISH, "syncCarbsWithTimestamp " +
-                            "[date=%d, carbs=%.2f, pumpSerial=%s] - Result: %b",
-                    detailedBolusInfo.timestamp, detailedBolusInfo.carbs, serialNumber(), result));
-
-            return new PumpEnactResult(getInjector()).success(true).enacted(true).bolusDelivered(0d);
+        if (detailedBolusInfo.insulin == 0 || detailedBolusInfo.carbs > 0) {
+            throw new IllegalArgumentException(detailedBolusInfo.toString(), new Exception());
         }
+        return deliverBolus(detailedBolusInfo);
     }
 
     @Override
diff --git a/pump/pump-common/src/main/java/info/nightscout/pump/common/PumpPluginAbstract.kt b/pump/pump-common/src/main/java/info/nightscout/pump/common/PumpPluginAbstract.kt
index b204793e3a..eda3246426 100644
--- a/pump/pump-common/src/main/java/info/nightscout/pump/common/PumpPluginAbstract.kt
+++ b/pump/pump-common/src/main/java/info/nightscout/pump/common/PumpPluginAbstract.kt
@@ -25,7 +25,6 @@ import app.aaps.core.interfaces.rx.AapsSchedulers
 import app.aaps.core.interfaces.rx.bus.RxBus
 import app.aaps.core.interfaces.rx.events.EventAppExit
 import app.aaps.core.interfaces.rx.events.EventCustomActionsChanged
-import app.aaps.core.interfaces.rx.events.EventOverviewBolusProgress
 import app.aaps.core.interfaces.sharedPreferences.SP
 import app.aaps.core.interfaces.utils.DateUtil
 import app.aaps.core.interfaces.utils.DecimalFormatter
@@ -35,7 +34,6 @@ import com.google.gson.GsonBuilder
 import dagger.android.HasAndroidInjector
 import info.nightscout.pump.common.data.PumpStatus
 import info.nightscout.pump.common.defs.PumpDriverState
-import info.nightscout.pump.common.sync.PumpDbEntryCarbs
 import info.nightscout.pump.common.sync.PumpSyncEntriesCreator
 import info.nightscout.pump.common.sync.PumpSyncStorage
 import io.reactivex.rxjava3.disposables.CompositeDisposable
@@ -303,27 +301,12 @@ abstract class PumpPluginAbstract protected constructor(
 
     @Synchronized
     override fun deliverTreatment(detailedBolusInfo: DetailedBolusInfo): PumpEnactResult {
+        // Insulin value must be greater than 0
+        require(detailedBolusInfo.carbs == 0.0) { detailedBolusInfo.toString() }
+        require(detailedBolusInfo.insulin > 0) { detailedBolusInfo.toString() }
+
         return try {
-            if (detailedBolusInfo.insulin == 0.0 && detailedBolusInfo.carbs == 0.0) {
-                // neither carbs nor bolus requested
-                aapsLogger.error("deliverTreatment: Invalid input")
-                PumpEnactResult(injector).success(false).enacted(false).bolusDelivered(0.0).comment(app.aaps.core.ui.R.string.invalid_input)
-            } else if (detailedBolusInfo.insulin > 0) {
-                // bolus needed, ask pump to deliver it
-                deliverBolus(detailedBolusInfo)
-            } else {
-                detailedBolusInfo.timestamp = System.currentTimeMillis()
-
-                // no bolus required, carb only treatment
-                pumpSyncStorage.addCarbs(PumpDbEntryCarbs(detailedBolusInfo, this))
-
-                val bolusingEvent = EventOverviewBolusProgress
-                bolusingEvent.t = EventOverviewBolusProgress.Treatment(0.0, detailedBolusInfo.carbs.toInt(), detailedBolusInfo.bolusType === DetailedBolusInfo.BolusType.SMB, detailedBolusInfo.id)
-                bolusingEvent.percent = 100
-                rxBus.send(bolusingEvent)
-                aapsLogger.debug(LTag.PUMP, "deliverTreatment: Carb only treatment.")
-                PumpEnactResult(injector).success(true).enacted(true).bolusDelivered(0.0).comment(R.string.common_resultok)
-            }
+            deliverBolus(detailedBolusInfo)
         } finally {
             triggerUIChange()
         }
diff --git a/pump/virtual/src/main/kotlin/app/aaps/pump/virtual/VirtualPumpPlugin.kt b/pump/virtual/src/main/kotlin/app/aaps/pump/virtual/VirtualPumpPlugin.kt
index 48d9eff923..dbb679cc66 100644
--- a/pump/virtual/src/main/kotlin/app/aaps/pump/virtual/VirtualPumpPlugin.kt
+++ b/pump/virtual/src/main/kotlin/app/aaps/pump/virtual/VirtualPumpPlugin.kt
@@ -181,6 +181,10 @@ open class VirtualPumpPlugin @Inject constructor(
         get() = batteryPercent
 
     override fun deliverTreatment(detailedBolusInfo: DetailedBolusInfo): PumpEnactResult {
+        // Insulin value must be greater than 0
+        require(detailedBolusInfo.carbs == 0.0) { detailedBolusInfo.toString() }
+        require(detailedBolusInfo.insulin > 0) { detailedBolusInfo.toString() }
+
         val result = PumpEnactResult(injector)
             .success(true)
             .bolusDelivered(detailedBolusInfo.insulin)