Forum Discussion
Search API with Application Permissions returns no results, Delegated permissions do
As of August 26th critical software in our company started to fail. All functionality involving getting results from Microsoft SharePoint Search failed to get any results. This software is Po...
We have the same problem, we have provisionally solved it by switching to authentication via service user but it is obviously not a solution. Has anyone tried registering an application with the old add-in model as I understand it is suggested here?
https://docs.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly
I did not try if that works, but I would not go down that route. The old model is disabled by default on a lot of tenants. It uses a really old authentication mechanism (ACS) In this case I'd opt for using a service account temporarily.