This article will help with the following error:
Microsoft Ads Error: Your IT department must enable access
Cause
Solution
Verify
Grant Microsoft Ads access to an email address that does not use your work domain and attempt to connect. If the connection is successful, you can conclude that your company's tenant administrator has not yet granted app-only permissions for Microsoft Ads.
PMA is unable to further assist with this issue as each company uses unique services to protect its own security.