SQS limits

It is important to understand SQS limits with respect to queues, messages, and policies. This topic describes various limits:

• Limits related to queues
• Limits related to messages
• Limits related to policies

The following table describes these limits:

Limit	Applies to	Description
Inflight messages per queue	Queues	Standard queue: Maximum 120,000 inflight messages. FIFO queue: Maximum 20,000 inflight messages. SQS returns an overLimit error if this limit is exceeded.
Queue name	Queues	Queue names can have a maximum of 80 characters. FIFO queue names must end with .fifo. Queue names can have alphanumeric characters, hyphens, and underscores.
Message attributes	Message	A message can have a maximum of 10 metadata attributes.
Message batch	Message	A message batch can have a maximum of 10 messages per batch.
Message content	Message	Message content can include only XML, JSON, and any unformatted text.
Message retention	Message	A queue can retain a message for a minimum of 60 seconds, a maximum of 14 days, and, by...