Tag - Amazon DynamoDB
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).


A description of a tag. Every tag is a key-value pair. You can add up to 50 tags to a single DAX cluster.

Amazon-assigned tag names and values are automatically assigned the aws: prefix, which the user cannot assign. Amazon-assigned tag names do not count towards the tag limit of 50. User-assigned tag names have the prefix user:.

You cannot backdate the application of a tag.



In the following list, the required parameters are described first.


The key for the tag. Tag keys are case sensitive. Every DAX cluster can only have one tag with the same key. If you try to add an existing tag (same key), the existing tag value will be updated to the new value.

Type: String

Required: No


The value of the tag. Tag values are case-sensitive and can be null.

Type: String

Required: No

See Also

For more information about using this API in one of the language-specific Amazon SDKs, see the following: