CodeCommit shows "Complete your account setup" even though account is ACTIVE and fully verified

Based on the troubleshooting steps you've already taken and the symptoms you're describing, this doesn't appear to be related to the common Git credential or IAM permission issues that typically affect CodeCommit access.

The most relevant consideration from a permissions standpoint is that access issues can sometimes be caused by IAM policies applied to your AWS account that deny one or more of the permissions required for accessing CodeCommit from the console. This could explain why you're unable to see the option to generate Git credentials in IAM and why you're getting the "Complete your account setup" message despite your account being active.

However, given that:

• Your account status shows as ACTIVE
• You've completed all verification steps
• You can access other AWS services like CodeBuild and CodePipeline
• The issue persists across different browsers, machines, and regions
• You've already tried accessing with the root user

This strongly suggests there may be a backend account provisioning issue specific to CodeCommit rather than a standard configuration or permissions problem. The fact that you cannot see Git credential options in IAM is particularly telling, as this feature should be available for accounts with CodeCommit access.

Since you've already exhausted the standard troubleshooting steps and AWS Support directed you to post here, I'd recommend creating a support case through the AWS Support Center (if you have a support plan) or continuing to engage through AWS forums where AWS staff may be able to investigate account-level issues that require backend access to resolve.
Sources
Troubleshooting console errors and AWS CodeCommit - AWS CodeCommit

Hello.

CodeCommit is not included in AWS's free plan, so you might be able to use it if you upgrade to a paid account.
Why not click "Upgrade Plan" and switch to a paid plan?
https://aws.amazon.com/free/?ams%23interactive-card-vertical%23pattern-data-339318104.search=code%20commit

Even if you switch to a paid AWS account, the credits you've earned will remain, so you can use AWS services for free within the limits of those credits as long as you have credits remaining.
https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/free-tier-plans.html