Server is unwilling to process the request - Active Directory - Add User via C#

Question

I used the example in this page to add a user to an Active Directory group, but I get an exception with the message \"Server is unwilling to process the request\" when execu

Answer 1

ldapwiki.com describes potential causes for "The server is unwilling to process the request". Check ExtendedErrorMessage property of your exception to figure out what applies. In my case "00002145: SvcErr: DSID-031A1254, problem 5003 (WILL_NOT_PERFORM)". The following line resolved the issue:

ent.Properties["groupType"].Value = 8;

I had missed to set groupType and so attempted to nest a universal group in a global group. Find more information on groupType attribute in ldapwiki.com