sysop@hub:~/tools/aadsts-lookup$

aadsts-lookup

Type an Entra ID sign-in error code such as AADSTS50053, or just the number, and get the meaning and the usual fix. You can also search by keyword.

Error code or keyword

The list covers common codes and is not complete. Descriptions are summaries; check the official Microsoft documentation for the current wording of an error and for details.