also: RB0002: Agency not appearing in dropdown for user login.
When: RTAC shows up copies but the agency is not properly listed against the copy, the copy will not be able to participate in resource sharing.
When: Agency is not listed in the options for patron login in discovery
...
Discovery scaffold when records are found for a known host LMS but location mapping codes are not present (And in this case, agency records are not present).
...