diff --git a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/messaging/Messaging.kt b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/messaging/Messaging.kt
index fecd44ce..fda9210b 100644
--- a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/messaging/Messaging.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/messaging/Messaging.kt
@@ -48,7 +48,10 @@ fun Context.sendMessageCompat(text: String, addresses: List<String>, subId: Int?
             when (e.errorCode) {
                 EMPTY_DESTINATION_ADDRESS -> toast(id = R.string.empty_destination_address, length = LENGTH_LONG)
                 ERROR_PERSISTING_MESSAGE -> toast(id = R.string.unable_to_save_message, length = LENGTH_LONG)
-                ERROR_SENDING_MESSAGE -> toast(id = R.string.unknown_error_occurred, length = LENGTH_LONG)
+                ERROR_SENDING_MESSAGE -> toast(
+                    msg = getString(R.string.unknown_error_occurred_sending_message, e.errorCode),
+                    length = LENGTH_LONG
+                )
             }
         } catch (e: Exception) {
             showErrorToast(e)
diff --git a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/messaging/SmsException.kt b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/messaging/SmsException.kt
index 96406915..e4bc14b0 100644
--- a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/messaging/SmsException.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/messaging/SmsException.kt
@@ -2,8 +2,8 @@ package com.simplemobiletools.smsmessenger.messaging
 
 class SmsException(val errorCode: Int, val exception: Exception? = null) : Exception() {
     companion object {
-        const val EMPTY_DESTINATION_ADDRESS = 0
-        const val ERROR_PERSISTING_MESSAGE = 1
-        const val ERROR_SENDING_MESSAGE = 2
+        const val EMPTY_DESTINATION_ADDRESS = -1
+        const val ERROR_PERSISTING_MESSAGE = -2
+        const val ERROR_SENDING_MESSAGE = -3
     }
 }