Copilot for Sales Outlook addin error

Michael_Deacon 

TDLR: I thought i fixed it, but the error came back.

The confusion is that the app store has two versions of this addin. One is called "Copilot for Sales" and it is billed as the enhanced application that works across Outlook, Teams and Outlook on the Web. There is a second addin called "Copilot for Sales for Microsoft Outlook" that says it only works in Outlook.  This is only a theory so tread lightly.

You cannot deploy both of them through the Integrated Apps process, but you can deploy the "classic" version through Centralized Deployment process.

1. From the M365 Admin Center go to Settings-->Integrated apps.
2. Across the top of the new window there are clickable links to Azure, Sharepoint, Teams, and Add-ins.
   1. Select Add-ins
       
3. From the new window select "Deploy Add-in"
4. Hit Next on the wizard then select "Choose from the Store"
5. Search for Copilot for Sales
6. Hit Add located next to "Copilot for Sales for Microsoft Outlook" then click Continue
7. Scope the deployment to a test account.  (Not recommended to deploy to your users until you test.)
8. Under deployment method, choose Optional then Next
9. Lastly, select Save to complete the deployment.
10. Can take up to 48 hours to fully deploy

This temporarily resolved the issue for my test account.  I messed around with it all day yesterday, then came in this morning to find the error is back.  Worth a try if you're willing to test.