I have API enabled a custom object and its attributes so that I can add as a module in Idea in the Modern UI. One of the attributes does not display any lookup value.
ERROR 2021-02-03 11:51:49,156 [http-nio-8080-exec-640] ppm.rest (clarity:user_id:35281538__4BA159D6-2C1C-44D4-9078-6090CE99C4DA:PPM_REST_API) LookupFilterParser :: The lookup [SCH_BROWSE_DEPT] filter [((searchText startsWith '%') and (param_entity_id_constrain = 'Impacted Organization00003178') and (param_entity_id = 'IO-00003178'))].
Release : 15.9
Component : CA PPM SAAS STUDIO
If the attribute is tied to a parameterized lookup, check to see if the Lookup Parameters are set correctly.
For example, it may be expecting entity id but the name is passing to entity_id_constrain and code is passing to entity_id. Update the parameters as applicable, (see example screenshot below).