Setting Utility to Delete Bib Tags Marked with Subfield 9

You can use the system-level Cataloging profile Subfield 9 cleanup utility to clean up specific MARC tags marked with a system-supplied subfield 9 and text. The profile specifies the tags to scan for the presence of the $9 and the date range. When the utility runs, the specified tags are checked for a $9, and if the subfield was inserted in the time period specified, the whole tag is deleted.

Note:
This utility is used to delete bibliographic tags from existing records after the processing is complete. You can also specify unwanted tags to delete from new bibliographic records when they are imported or saved. See Specify tags to retain from overlaid bibs.

These system-supplied subfields are inserted under the following conditions to prevent bibliographic tags from being used more than once:

Before item records are created from embedded holdings data in imported bibliographic records, the system first checks for the presence of existing embedded holdings tags. If embedded holdings tags are found and they are not already marked with a $9 subfield, the tags are marked with the subfield 9 and the text Tag retained from duplicate overlaymmm dd yyyy hh:mm[AM/PM]. The marked tags are not used to create item records. Bib Tags Marked to Prevent Creation/Updates of Items.
After item records are created from embedded holdings tags in imported bibliographic records, a subfield 9 and the text Item generated mmm dd yyyy hh:mm[AM/PM] is inserted only if the Cataloging parameter MARC embedded holdings tags as processed is set to Yes in Polaris Administration. The marked tags are not used again.
After eContent items are created automatically by inserting 852 tags in the bibliographic records.
After bibliographic records are bulk-added to a purchase order or selection list, a subfield 9 and the text Processed mmm dd yyyy hh:mm[AM/PM] is inserted into the 970 tags if the Acquisitions parameter Bulk add to PO/SL: Mark 970 data as processed is set to Yes. The marked tags are not used again during bulk add.

Note:
970 tags are also marked during migration from another system with $9 Migrated 970: mmm dd yyyy hh:mm[AM/PM].