PublishBatchRequestEntry

An identifier for the message in this batch.

The body of the message.

Each message attribute consists of a Name, Type, and Value. For more information, see Amazon SNS message attributes in the Amazon SNS Developer Guide.

This parameter applies only to FIFO (first-in-first-out) topics.

FIFO topics: The tag that specifies that a message belongs to a specific message group. Messages that belong to the same message group are processed in a FIFO manner (however, messages in different message groups might be processed out of order). To interleave multiple ordered streams within a single topic, use MessageGroupId values (for example, session data for multiple users). In this scenario, multiple consumers can process the topic, but the session data of each user is processed in a FIFO fashion. You must associate a non-empty MessageGroupId with a message. If you do not provide a MessageGroupId, the action fails.

Set MessageStructure to json if you want to send a different message for each protocol. For example, using one publish action, you can send a short message to your SMS subscribers and a longer message to your email subscribers. If you set MessageStructure to json, the value of the Message parameter must:

The subject of the batch message.