Can you please advise on a the use case where using the 250 is specifically needed? I would expect that the system would already know not create a dedup match in cases of editions based on metadata already used such as the identifier, date, pagination etc.
Note that from the November release libraries can now create new keys also using MARC local fields (9xx,5xx etc.) allowing conditions based custom elements and match points.
Can you please advise on a the use case where using the 250 is specifically needed? I would expect that the system would already know not create a dedup match in cases of editions based on metadata already used such as the identifier, date, pagination etc.
Note that from the November release libraries can now create new keys also using MARC local fields (9xx,5xx etc.) allowing conditions based custom elements and match points.