diff --git a/app/src/main/java/me/capcom/smsgateway/data/dao/MessagesDao.kt b/app/src/main/java/me/capcom/smsgateway/data/dao/MessagesDao.kt
index b15e693..36b5172 100644
--- a/app/src/main/java/me/capcom/smsgateway/data/dao/MessagesDao.kt
+++ b/app/src/main/java/me/capcom/smsgateway/data/dao/MessagesDao.kt
@@ -144,6 +144,12 @@ interface MessagesDao {
         _insertRecipientStatesByMessage(id, state)
     }
 
+    @Query("UPDATE message SET simNumber = :simNumber WHERE id = :id")
+    fun updateSimNumber(
+        id: String,
+        simNumber: Int
+    )
+
     @Query("DELETE FROM message WHERE createdAt < :until AND state <> 'Pending'")
     suspend fun truncateLog(until: Long)
 }
\ No newline at end of file
diff --git a/app/src/main/java/me/capcom/smsgateway/modules/messages/MessagesService.kt b/app/src/main/java/me/capcom/smsgateway/modules/messages/MessagesService.kt
index 5854b6d..07ab5de 100644
--- a/app/src/main/java/me/capcom/smsgateway/modules/messages/MessagesService.kt
+++ b/app/src/main/java/me/capcom/smsgateway/modules/messages/MessagesService.kt
@@ -236,6 +236,7 @@ class MessagesService(
                 msg.message.source,
                 phone?.let { setOf(it) } ?: msg.recipients.map { it.phoneNumber }.toSet(),
                 state,
+                msg.message.simNumber,
                 error
             )
         )
@@ -262,7 +263,12 @@ class MessagesService(
         val message = request.message
         val id = message.id
 
-        val smsManager: SmsManager = getSmsManager(selectSimNumber(request))
+        val simNumber = selectSimNumber(request)
+        val smsManager: SmsManager = getSmsManager(simNumber)
+
+        if (request.message.simNumber == null && simNumber != null) {
+            dao.updateSimNumber(id, simNumber + 1)
+        }
 
         @Suppress("NAME_SHADOWING")
         val messageText = when (message.isEncrypted) {
diff --git a/app/src/main/java/me/capcom/smsgateway/modules/messages/events/MessageStateChangedEvent.kt b/app/src/main/java/me/capcom/smsgateway/modules/messages/events/MessageStateChangedEvent.kt
index a1ab05b..aa932c5 100644
--- a/app/src/main/java/me/capcom/smsgateway/modules/messages/events/MessageStateChangedEvent.kt
+++ b/app/src/main/java/me/capcom/smsgateway/modules/messages/events/MessageStateChangedEvent.kt
@@ -9,6 +9,7 @@ class MessageStateChangedEvent(
     val source: EntitySource,
     val phoneNumbers: Set<String>,
     val state: ProcessingState,
+    val simNumber: Int?,
     val error: String?
 ): AppEvent(NAME) {
 
diff --git a/app/src/main/java/me/capcom/smsgateway/modules/webhooks/EventsReceiver.kt b/app/src/main/java/me/capcom/smsgateway/modules/webhooks/EventsReceiver.kt
index b1045a1..04f4dc3 100644
--- a/app/src/main/java/me/capcom/smsgateway/modules/webhooks/EventsReceiver.kt
+++ b/app/src/main/java/me/capcom/smsgateway/modules/webhooks/EventsReceiver.kt
@@ -40,18 +40,21 @@ class EventsReceiver : EventsReceiver() {
                             WebHookEvent.SmsSent -> SmsEventPayload.SmsSent(
                                 messageId = event.id,
                                 phoneNumber = phoneNumber,
+                                event.simNumber,
                                 sentAt = Date(),
                             )
 
                             WebHookEvent.SmsDelivered -> SmsEventPayload.SmsDelivered(
                                 messageId = event.id,
                                 phoneNumber = phoneNumber,
+                                event.simNumber,
                                 deliveredAt = Date(),
                             )
 
                             WebHookEvent.SmsFailed -> SmsEventPayload.SmsFailed(
                                 messageId = event.id,
                                 phoneNumber = phoneNumber,
+                                event.simNumber,
                                 failedAt = Date(),
                                 reason = event.error ?: "Unknown",
                             )
diff --git a/app/src/main/java/me/capcom/smsgateway/modules/webhooks/payload/SmsEventPayload.kt b/app/src/main/java/me/capcom/smsgateway/modules/webhooks/payload/SmsEventPayload.kt
index 4d36852..92ec291 100644
--- a/app/src/main/java/me/capcom/smsgateway/modules/webhooks/payload/SmsEventPayload.kt
+++ b/app/src/main/java/me/capcom/smsgateway/modules/webhooks/payload/SmsEventPayload.kt
@@ -5,23 +5,27 @@ import java.util.Date
 sealed class SmsEventPayload(
     val messageId: String,
     val phoneNumber: String,
+    val simNumber: Int?,
 ) {
     class SmsSent(
         messageId: String,
         phoneNumber: String,
-        val sentAt: Date
-    ) : SmsEventPayload(messageId, phoneNumber)
+        simNumber: Int?,
+        val sentAt: Date,
+    ) : SmsEventPayload(messageId, phoneNumber, simNumber)
 
     class SmsDelivered(
         messageId: String,
         phoneNumber: String,
-        val deliveredAt: Date
-    ) : SmsEventPayload(messageId, phoneNumber)
+        simNumber: Int?,
+        val deliveredAt: Date,
+    ) : SmsEventPayload(messageId, phoneNumber, simNumber)
 
     class SmsFailed(
         messageId: String,
         phoneNumber: String,
+        simNumber: Int?,
         val failedAt: Date,
         val reason: String,
-    ) : SmsEventPayload(messageId, phoneNumber)
+    ) : SmsEventPayload(messageId, phoneNumber, simNumber)
 }
\ No newline at end of file