Alliance members who participate in the OCLC Member Merge program receive extensive training to get authorization to perform master record merges.
These guidelines clarify what can be edited by NACO/SACO institutions and non-NACO/SACO institutions.
When Alliance catalogers find Network Zone records that lack ISBNs, the ISBNs should be added to the WorldCat master record.
Due to the technical architecture of the Alma NZ, changes must be entered into the WorldCat bibliographic record or they will be lost when the Alma record is overlaid. By cataloging at the WorldCat level, Alliance members improve discoverability for all Alliance Primo users, not just their own users.