Add User to Group Azure AD activity The Add User to Group activity adds a user to an existing security group in Azure Active Directory. To access this activity in the workflow editor, select the Custom tab, and then navigate to Custom Activities > Azure AD. This activity was built with the REST Web Service activity designer template. Important: The REST message used for this activity must be configured to use OAuth2 authentication. Input variables Table 1. Add User to Group input variables Variable Description user_id Object ID (GUID) of the member to be added. group_id Object ID (GUID) of the target group. Output variables Table 2. Add User to Group output variables Variable Description error Returns the error string from the REST message. If there are no errors, this variable returns a null value. body Contains a string value representing the output from the REST message. status_code Contains the status code returned from the Web service. Conditions Table 3. Add User to Group conditions Condition Description Success Activity successfully added the object ID to the security group. Failure Activity failed to update the group's membership, or the activity failed to connect to Azure AD.