The Request ID field
The BMC Remedy AR System tracks the entries in the underlying forms that comprise a join form through the request ID of each entry. When you look at the Request ID field in a join form entry, you see that the field contains the Request ID of each underlying entry separated by a vertical bar. For this reason, if you create a join form from a non-join form and a join form (see join form H in Joining several forms), the join form's Request ID field contains three request IDs separated by vertical bars.
The default permissions of the Request ID field in a join form are defined as Visible for the Assignee, Public, and Submitter groups. (For all other fields, the permissions are inherited from the underlying forms and cannot be changed.) However, you can remove the Public permissions of the Request ID field to make row-level security work in BMC Remedy AR System. For information, see Controlling access by using implicit groups — Row-level security.