How to delete IAM Identity Center Account Instance via AWS Console

You just need to delete the Identity Center configuration.

To delete your IAM Identity Center configuration

1. Open the IAM Identity Center console.
2. In the left navigation pane, choose Settings.
3. On the Settings page, choose the Management tab.
4. In the Delete IAM Identity Center configuration section, choose Delete.
5. In the Delete IAM Identity Center configuration dialog, select each of the check boxes to acknowledge you understand that your data that will be deleted. Type your IAM Identity Center instance in the text box, and then choose Confirm.