Best place to find out is to read the Sharepoint Online API docs. Do you have a link to those that talk about how to set up OAuth for Sharepoint? That should tell you want the endpoint URLs should be.
Thanks Bart. It was actually about getting to the right place in Azure - but I found what I needed eventually. I now have an access token in my OAuth2 Asset, but a little unsure what to do next. I have a REST Resource set up, but finding examples of existing ones to help figure it out is proving difficult. Any tips?
If I view the REST Resource directly, I get an error {“error_description”:“Exception of type ‘Microsoft.IdentityModel.Tokens.AudienceUriValidationFailedException’ was thrown.”}
I’m wondering if this indicates I need to do more config on the Azure / SharePoint 365 side
In the Redirect URI field, enter callback URI provided in app settings - it is usually url of OAuth 2 token asset or REST asset with nested OAuth 2 token (Salesforce app is sending required data back to callback asset)