The following list gives information specific to the SQS implementation of access control.
SQS allows you to share only certain types of permissions (for more information, see Understanding Permissions)
Each policy must cover only a single queue (when writing a policy, don't include statements that cover different queues)
Each policy must have a unique policy ID (Id)
Each statement in a policy must have a unique statement ID (sid)
SQS does not implement any special keys to use when you write conditions; the only keys available are the general AWS-wide keys.