Can't add or change record. Referential integrity rules require a related record in table 'Item'.
Error 3201
You tried to perform an operation that would have violated referential integrity For example, this error occurs if you try to change or insert a record in the "many" table in a one-to-many relationship , and that record doesn't have a related record in the table on the "one" side.
If you want to add or change the record, first add a record to the "one" table that contains the same value for the matching field.