Updated on 2026-08-14

domain/models/src/main/kotlin/com/tangem/domain/models/network/Network.kt

@@ -148,5 +148,17 @@ data class Network(
 
         /** Destination tag supported */
         DESTINATION_TAG,
+
+        ;
+
+        /**
+         * Indicated whether any tx extras are supported
+         */
+        fun isTxExtrasSupported() = when (this) {
+            NONE -> false
+            MEMO,
+            DESTINATION_TAG,
+            -> true
+        }
     }
 }

features/send-v2/impl/src/main/java/com/tangem/features/send/v2/subcomponents/amount/model/SendAmountModel.kt

@@ -22,11 +22,11 @@ import com.tangem.core.ui.extensions.resourceReference
 import com.tangem.domain.appcurrency.GetSelectedAppCurrencyUseCase
 import com.tangem.domain.appcurrency.model.AppCurrency
 import com.tangem.domain.exchange.RampStateManager
+import com.tangem.domain.models.wallet.UserWallet
+import com.tangem.domain.models.wallet.isMultiCurrency
 import com.tangem.domain.tokens.GetMinimumTransactionAmountSyncUseCase
 import com.tangem.domain.tokens.model.CryptoCurrencyStatus
 import com.tangem.domain.tokens.model.ScenarioUnavailabilityReason
-import com.tangem.domain.models.wallet.UserWallet
-import com.tangem.domain.models.wallet.isMultiCurrency
 import com.tangem.domain.wallets.usecase.GetUserWalletUseCase
 import com.tangem.features.send.v2.api.SendFeatureToggles
 import com.tangem.features.send.v2.api.entity.PredefinedValues
@@ -323,10 +323,7 @@ internal class SendAmountModel @Inject constructor(
             flow2 = params.currentRoute.filterIsInstance<CommonSendRoute.Amount>(),
             transform = { state, route -> state to route },
         ).onEach { (state, route) ->
-            isSendWithSwapAvailable.update {
-                val isMultiCurrency = userWallet?.isMultiCurrency == true
-                isAvailableForSwap && isMultiCurrency && sendFeatureToggles.isSendWithSwapEnabled
-            }
+            setSendWithSwapAvailability()
             params.callback.onNavigationResult(
                 NavigationUM.Content(
                     title = resourceReference(R.string.send_amount_label),
@@ -367,4 +364,15 @@ internal class SendAmountModel @Inject constructor(
             )
         }.launchIn(modelScope)
     }
+
+    private fun setSendWithSwapAvailability() {
+        // Allowed only in multicurrency wallets
+        val isMultiCurrency = userWallet?.isMultiCurrency == true
+
+        // Allowed only on networks without tx extras (e.i. memo and destination tag)
+        val isExtrasSupported = cryptoCurrencyStatus.currency.network.transactionExtrasType.isTxExtrasSupported()
+        isSendWithSwapAvailable.update {
+            isAvailableForSwap && isMultiCurrency && sendFeatureToggles.isSendWithSwapEnabled && !isExtrasSupported
+        }
+    }
 }