Good Afternoon Nadja,
I hope this message finds you well,
As Tom says, this is a difficult one to answer without knowing the settings and app configuration, but from previous examples, this is usually caused by the OAuth2/Azure user field mapping or Azure/Entra app permissions rather than authentication plugin or Totara application itself.
I'd recommend that you check that the relevant OAuth2 user field mappings include department, organisation and manager. (/admin/tool/oauth2/userfieldmappings.php?issuerid=X)
If the issue still occurs after confirming all of the valid fields are mapped correctly against your external system, then I would recommend raising this with Totara Support or through your relevant partner support channels.
Kind regards,
David Cardiff
Support Services Team Leader
UNITED KINGDOM
Totara Learning Solutions Limited is globally headquartered at 2 Minster Court, London, EC3R 7BB, United Kingdom. Company number: 8696320.