A Complete Guide to Resource Sharing for AWS End User Messaging

This comprehensive article provides a detailed guide to sharing AWS End User Messaging resources across multiple AWS accounts using AWS Resource Access Manager (RAM). The key points include:

• Shareable resources include phone numbers, Sender IDs, opt-out lists, and pools
• Sharing is a regional feature, limited to resources within the same AWS Region
• Benefits include simplified testing, easier account migrations, and centralized messaging management
• Requires careful IAM permissions and AWS Organizations configuration

Key steps for resource sharing involve:

• Creating a resource share in the sharing account
• Associating specific messaging resources with the share
• Verifying resource status and associations
• Enabling consuming accounts to discover and use shared resources

The guide emphasizes best practices like least privilege, understanding billing implications, and managing throughput quotas when sharing messaging resources across accounts.