Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi, Ethan
Good day!
Thank you for posting to Microsoft Community. We are happy to help you.
According to your description, the issue of your concern that you would like to set up the Microsoft Purview Message encryption for your new tenant.
Please be kindly to understand that we're Office 365 Outlook tech support team. Therefore, we would like to refer you to the right place - azure-purview which there's a professional team who dedicating into connecting AIP services with rich experience and more resources.
We believe they will give you a quick respond and solve it soon for you.
Thanks for your time and your understanding would be highly appreciated.
Sincerely,
Alex | Microsoft Community Moderator.