Updated on 2026-08-14

features/swap/impl/src/main/java/com/tangem/feature/swap/model/SwapNotificationsFactory.kt

@@ -138,7 +138,10 @@ internal class SwapNotificationsFactory(
             maybeAddPriceImpactNotification(quoteModel.priceImpact)
             maybeAddHighNetworkFeeWarning(isHighNetworkFee)
         }
-        return warnings.toPersistentList()
+        // Two independent dust checks (SDK TransactionDustChangeError in addValidateTransactionNotifications +
+        // manual change-below-dust in addDustWarningNotification) can both add an identical MinimumAmountError.
+        // distinct() collapses the duplicate "Invalid amount" banner.
+        return warnings.distinct().toPersistentList()
     }
 
     private fun MutableList<NotificationUM>.maybeAddHighNetworkFeeWarning(isHighNetworkFee: Boolean) {

features/swap/impl/src/main/java/com/tangem/feature/swap/ui/transfer/SwapTransferNotificationsFactory.kt

@@ -69,7 +69,10 @@ internal class SwapTransferNotificationsFactory @Inject constructor() {
                 feeError = getFeeError,
                 actions = actions,
             )
-        }.toPersistentList()
+        }
+            // Two independent dust checks can both add an identical MinimumAmountError; collapse the duplicate banner.
+            .distinct()
+            .toPersistentList()
     }
 
     private fun MutableList<NotificationUM>.maybeAddRentExemptionError(state: SwapState.Transfer) {