An entity lookup: find a record where MatchField === (computed) MatchValue, return ReturnField.
Optional
Value to use when no record matches.
Entity to look in (e.g. 'Accounts').
Field on the lookup entity to match against.
How to compute the value to match (static / field / formula).
Field to return from the matched record.
An entity lookup: find a record where MatchField === (computed) MatchValue, return ReturnField.