When trying to make a connection from Excel PowerPivot out to an Azure Analysis Services cube, I get the below error once I click on the Design button in Power Pivot.
AADSTS50011: The reply URL specified in the request does not match the reply URLs configured for the application: 'cf710c6e-dfcc-4fa8-a093-d47294e44c66'.
Specific version of Excel:
Version 2108 (Build 14326.20738 Click-to-Run)
Microsoft Excel for Microsoft 365 MSO (16.0.14326.20706) 64-bit
If I just do "Get Data" from Excel, or use Power Query to connect, the connection works fine and I can connect and load data from the cube. However, when using PowerPivot, I am able to see the cubes on my server, and a "Test Connection" is successful. However, once I click the "design" button, in order to build my query, that is when the error message pops up.

