If you have dots in your username, for instance sasan.rose, stack name generated by UserAccountScopedStackName will result in validation errors:
ValidationError: 1 validation error detected: Value 'MyHelloWorldStack-sasan.rose' at 'stackName' failed to satisfy constraint: Member must satisfy regular expression pattern: [a-zA-Z][-a-zA-Z0-9]*|arn:[-a-zA-Z0-9:/._+]*
If you have dots in your username, for instance
sasan.rose
, stack name generated byUserAccountScopedStackName
will result in validation errors: