How do I troubleshoot the error "Cannot create a replica of table" when I try to add a replica to an Amazon DynamoDB global table?

Last updated: 2022-08-25

This error occurs when the write throughput for the DynamoDB global table exceeds the default Regional quota of 40,000 at table level. In this case, you must request a service quota increase for add replica quota write capacity units (WCU). Global tables implement checks when you add a replica to be sure that the table has sufficient capacity to replicate writes.

You can create a case in the AWS Support Center to request a quota increase for DynamoDB global tables. When you submit your quota increase request, be sure to provide the following information:

• Table names of the global table
• All Regions where you need the global table to have replicas, including existing Regions
• Steady state WCU utilization of the global table
• Peak WCU utilization of the global table

You're notified through an email when your request is approved.