When ordering a title via z39.50, the duplicate match is only done on the first ISBN. This can lead to duplicates being ordered and created. To recreate: 1. Have a record that you can find via z39.50 2. Copy the ISBN 3. In Acquisitions, create a basket 4. Add to basket from an external source 5. Using the copied ISBN, search a z39.50 source 6. Click the result and click Order --> It should warn for a duplicate 7. Click Cancel 8. Edit the record, add a second ISBN 9. Redo steps 4-6 --> It should warn for a duplicate 10. Click Cancel 11. Edit the record, place the second ISBN in first position 12. Redo steps 4-6 --> No duplicate warning! Note: if you cancel after step 12, the duplicate record will have been created. You will need to search your catalog and delete the record to redo the tests. I don't know if that is only in the case of z39.50 or if other types of orders also have that same problem.
I don't know if this is the same problem as bug 27278
Hi Caroline, I am wondering about this one, because I thought we had taken care of it with: Bug 31471 - Duplicate check in cataloguing fails with Elasticsearch for records with multiple ISBN Could you verify the version and search engine you are seeing this with?