I'm having a tough time connecting to SharePoint lists using PnP PowerShell with client secrets. I've registered the app and set the necessary permissions, but every time I try to use client secrets to connect, I get a 401 Unauthorized error. When I connect using a certificate, everything works fine. Here's the command I'm using to connect with the client secret: `Connect-PnPOnline -ClientId $clientId -ClientSecret $clientSecret -Url "https://.sharepoint.com/sites/" -TenantAdminUrl "https://-admin.sharepoint.com/"`. Any ideas on what might be going wrong or how to get the client secret connection to work?
3 Answers
Is there a specific reason you're going with the client secret instead of a certificate? Secrets can be stored in plain text, which isn't very secure. Also, make sure that your client secret is correct. If you're still having trouble, try generating a new secret to see if that changes anything.
It seems like the issue might be due to using client secrets instead of certificates. Client secrets can connect using Azure ACS, which is actually a retired service and requires additional configuration in SharePoint. Switching to certificates is generally the recommended option since they provide a more reliable connection.
I had a similar issue, and once I started using a certificate instead of a client secret, everything worked smoothly. Just double-check that your app registration isn't misconfigured, especially if you're using any delegated permissions. It usually works better with the right app permissions set up along with the certificate.
Delegated permissions on the same app registration shouldn't be a problem as long as you're requesting tokens as an application. For SharePoint calls that utilize Graph, certificates are necessary for a lot of operations. Just make sure your app has the required permissions!