Unable to add user with CrmService API in Dynamics CRM

Answer 1

The 0x80072020 error is related to a generic "Access Denied" in AD.

Depending on your configuration, you could try to pinpoint the issue by modifying the following:

1) Grant the "delegate" option to the application pool user using Active Directory Users and Computers. 2) Add a web.config to the MSCRMServices folder and turn impersonation on such as:

< identity impersonate="true" userName="mydomain\bob" password="builder" />