When using the Active Directory Driver with Novell Identity Manager, you may sometimes see an LDAP error 49 in your DSTrace. This means the account credentails could not log in correctly.
Here are the error codes you might see along with error 49, and their definitions:
It's useful to know what to do next to resolve the problem. For a 525 error, you probably have the Bind DN wrong. Remember that in AD, the default Users container on a fresh install is an odd object class, whose naming attribute is actually cn=Users(,dc=acme,dc=com) instead of what you might be expecting (such as ou=Users,dc=acme,dc=com).
If you see a 52e, it means you sent the wrong password. And so on and so forth.
You will often see a "sub-error" code that may be quite informative.