Assignments on standard attributes

Records are assigned standard attribute values. An assignment indicates that a record has a value for a standard attribute.

A record typically has assignments for multiple standard attributes. For each assigned attribute, the record may have one or more values. An assignment on a standard attribute is known as a key value pair (KVP).

Not all standard attributes will have an assignment for every record. For example, for a publisher that sells both books and magazines, the "ISBN number" standard attribute would be assigned for book records, but not assigned (empty) for most magazine records.

Standard attributes may be single-assign or multi-assign:

By default, all standard attributes are multi-assign. To make a standard attribute single-assign, you must update the attribute configuration.