Dimension Look-up during Transformation

Just to add to the answer already posted, if you need to lookup whether the incoming UD2 string is a valid member in the target UD2 dimension, please avoid using BRAPI functions (like BRAPI.Finance.Members.GetMember ) in BRs like this since each call to a BRAPI function creates and destroys a database connection object from the DB connection pool, which is quite inefficient.  You can make this more efficient by storing a list of valid members in memory , and caching it in BRGlobals, so it doesn't have to use BRAPI lookup functions every time.  Below example for illustration purposes...