Quotas
To make AWS KMS responsive and performant for all users, AWS KMS applies two types of quotas, resource quotas and request quotas. Each quota is calculated independently for each Region of each AWS account.
If you need to exceed a quota, you can request a quota increase in Service Quotas. Use the
Service Quotas console
To request an increase in an AWS KMS quota, see Requesting an AWS KMS quota increase.