Advance / Advancing
Confirming every detail of a show with the venue and promoter ahead of time: schedule, production specs, parking, catering, guest list, merch, and contacts. Advancing usually starts weeks before the date.
In practice
A good advance leaves both sides with one current version of the plan and a clear list of open questions. The tour can track who owes each answer and when it is needed, then carry confirmed times, contacts, and requirements into the day sheet. When details change, record the update and tell the people whose work is affected.