CfnResourcePolicy

Attaches a resource-based policy to a End User Messaging resource(phone number, sender Id, phone poll, or opt-out list) that is used for sharing the resource. A shared resource can be a Pool, Opt-out list, Sender Id, or Phone number. For more information about resource-based policies, see [Working with shared resources](https://docs.aws.amazon.com/sms-voice/latest/userguide/shared-resources.html) in the *End User Messaging User Guide* .