Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
Thank you for sharing the requested details via the Teams message. This required intervention from the development team, following which the orphaned Service Area Link (SAL) was removed from the system. As discussed offline and confirmed, the issue has been successfully resolved by removing the SAL link and deleting the three resource groups, which was validated by the customer.
If the answer is helpful, Please do click "Accept the answer” and Yes, this can be beneficial to other community members.
If you have any other questions, let me know in the "comments" and I would be happy to help you