IMPORTANT: In July 2025, we stopped releasing new versions of KTX modules, and we removed the KTX libraries from the Firebase Android BoM (v34.0.0). If you use KTX APIs from the previously released KTX modules, we recommend that you migrate your app to use KTX APIs from the main modules instead. For details, see the FAQ about this initiative.

SendException

class SendException : Exception

kotlin.Any
↳	kotlin.Throwable
	↳	java.lang.Exception
		↳	com.google.firebase.messaging.SendException

Firebase message send exception.

This will be passed to onSendError on errors that prevented a message from being sent via send

Summary

Constants
`const Int`	`ERROR_INVALID_PARAMETERS = 1` Message was sent with invalid parameters.
`const Int`	`ERROR_SIZE = 2` Message exceeded the maximum payload size.
`const Int`	`ERROR_TOO_MANY_MESSAGES = 4` App has too many pending messages so this one was dropped.
`const Int`	`ERROR_TTL_EXCEEDED = 3` Message time to live (TTL) was exceeded before the message could be sent.
`const Int`	`ERROR_UNKNOWN = 0` Unknown error.

Public properties
`Int`	`errorCode`

Inherited functions

From java.lang.Throwable

`synchronized Unit`	`addSuppressed(exception: Throwable!)`
`synchronized Throwable!`	`fillInStackTrace()`
`synchronized Throwable!`	`getCause()`
`String!`	`getLocalizedMessage()`
`String!`	`getMessage()`
`Array<StackTraceElement!>!`	`getStackTrace()`
`synchronized Array<Throwable!>!`	`getSuppressed()`
`synchronized Throwable!`	`initCause(cause: Throwable!)`
`Unit`	`printStackTrace()`
`Unit`	`setStackTrace(stackTrace: Array<StackTraceElement!>!)`
`String!`	`toString()`

Constants

ERROR_INVALID_PARAMETERS

const val ERROR_INVALID_PARAMETERS = 1: Int

Message was sent with invalid parameters.

ERROR_SIZE

const val ERROR_SIZE = 2: Int

Message exceeded the maximum payload size.

ERROR_TOO_MANY_MESSAGES

const val ERROR_TOO_MANY_MESSAGES = 4: Int

App has too many pending messages so this one was dropped.

ERROR_TTL_EXCEEDED

const val ERROR_TTL_EXCEEDED = 3: Int

Message time to live (TTL) was exceeded before the message could be sent.

ERROR_UNKNOWN

const val ERROR_UNKNOWN = 0: Int

Unknown error.

Public properties

errorCode

val errorCode: Int