I'm getting the "Relationship must be on the same number of fields with the same data types" error message. The one-to-many link between Student and Record is set up. Student Record Class PERSONID YEAR YEAR PERSONID PERSONID TIMESLOT All fields are type "Number" and I'm trying to set up links between fields with the same names. The Keys to these tables are the capitalized words. The error msg comes when I try to link YEAR-PERSONID in Record to Class.