Select your cookie preferences

We use essential cookies and similar tools that are necessary to provide our site and services. We use performance cookies to collect anonymous statistics, so we can understand how customers use our site and make improvements. Essential cookies cannot be deactivated, but you can choose “Customize” or “Decline” to decline performance cookies.

If you agree, AWS and approved third parties will also use cookies to provide useful site features, remember your preferences, and display relevant content, including relevant advertising. To accept or decline all non-essential cookies, choose “Accept” or “Decline.” To make more detailed choices, choose “Customize.”

Limitations when using SCRAM secrets

Focus mode
Limitations when using SCRAM secrets - Amazon Managed Streaming for Apache Kafka

Note the following limitations when using SCRAM secrets:

  • Amazon MSK only supports SCRAM-SHA-512 authentication.

  • An Amazon MSK cluster can have up to 1000 users.

  • You must use an AWS KMS key with your Secret. You cannot use a Secret that uses the default Secrets Manager encryption key with Amazon MSK. For information about creating a KMS key, see Creating symmetric encryption KMS keys.

  • You can't use an asymmetric KMS key with Secrets Manager.

  • You can associate up to 10 secrets with a cluster at a time using the BatchAssociateScramSecret operation.

  • The name of secrets associated with an Amazon MSK cluster must have the prefix AmazonMSK_.

  • Secrets associated with an Amazon MSK cluster must be in the same Amazon Web Services account and AWS region as the cluster.

PrivacySite termsCookie preferences
© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved.