I had an AWS account named "Developer-Test" that was enrolled with AWS Control Tower. I wanted to rename it to "Developer-Test-version-1" and create a new account using the same name, "Developer-Test."
Therefore, I renamed the existing account to "Developer-Test-version-1" through the account settings. Subsequently, I attempted to create another account named "Developer-Test" using the AWS Control Tower Account Factory, but encountered an error as follows:
AWS Control Tower cannot enroll the account. There's an error in the provisioned product in AWS Service Catalog: A stack named Developer-Test already exists.
You might want to unmanaged the existing account in the control tower console. Wait until the "unamanged" step to complete. Try to create the new account with the same name.
I hope this will help.