Will there be a control field coding that needs to be brought up to minimum standard? Will there be any local information that needs to be moved to 950-999? Does anything need to be marked #9 LOCAL?
Local tagging 950 - 999 tags will need to be considered once the Met/Cat has defined local tags for the consortia
Suggestions for Non-Sirsi Libraries
Consider cleaning out old patron files;
Fines that you do not want to bring over should be forgiven;
You also may need to clean up any coding errors that may prevent items from being mapped to locations;
Consider control field coding that needs to be cleaned up.
Local tags may need to be reviewed (how you are marking them). Alma Migration Considerations for Consortia - Ex Libris Knowledge Center (exlibrisgroup.com)
If there are any carts of weeded items to be purged, it would be useful to get that done prior to cutover.