...
- flag, and do not follow-thru with, any title whose instance has been modified since it was first created - for each of these...
- update the MARC so that it agrees with the instance and then follow-thru with...
- add an 856 like so: $uhttps://walter.drew.edu/cgi-bin/folio/editMARC/{instanceId}$yeditMARC
- replace Sirsi-based 999s with FOLIO-based 999s
- overlay (PUT) FOLIO's instance db table
- overlay (UPDATE) Walter's MySQL db with the new MARC and re-index in Solr
- add (POST) the new MARC to FOLIO's "records" db table