Hi,
Thank you for posting in Microsoft Q&A.
According to your description, your issue seems more related with Microsoft 365. As the topic have not moved to Microsoft Q&A yet, please kindly re-post your issue in the Office 365 community forums:
http://go.microsoft.com/fwlink/p/?LinkID=518605
The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us.
Thank you for your understanding.