AWS Documentation » AWS CloudTrail » User Guide » Working with CloudTrail » Tips for Managing Trails » CloudTrail Trail Naming Requirements

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CloudTrail Trail Naming Requirements

CloudTrail trail names must meet the following requirements:

• Contain only ASCII letters (a-z, A-Z), numbers (0-9), periods (.), underscores (_), or dashes (-).

• Start with a letter or number, and end with a letter or number.

• Be between 3 and 128 characters.

• Have no adjacent periods, underscores or dashes. Names like my-_namespace and my-\-namespace are invalid.

• Not be in IP address format (for example, 192.168.5.4).