If an operator does use Merge as the default profile setting, only records that match exactly on the 035A field will overlay existing items, and will do so without Dup Detection. If none of the fields listed above is on the existing record, Merge will function exactly like Overlay. Overlay is not designed to be used as a default profile setting. The field definition given in the table above is intended primarily as a placeholder in the Voyager System Administration module, where some value has to be added for the profile to exist. If an operator does use Overlay as the default profile setting, only records that match exactly on the 035A field will overlay existing items, and will do so without Dup Detection.
Overlay is available only in the Cataloging module.
Acquisitions staff who need to overlay a bib record would need to do so in Cataloging.