While "Material type, status, and (Sierra only) message code synchronization" is offered, it doesn't appear that we are able to sync other fixed fields that are changed in an item record. For example, updating the OPACMSG field in the item record is not reflected in Vega, even after running the sync. Changing the OPACMSG in an ITEM record does not get activated by the sync function in Vega admin…you must update the bib as well and then run the extraction (or wait overnight). Aside from making the documentation more clear, ideally syncing is expanded to reflect changes to items w/out having to resort to updating the bib as well.