Clarify the material employment facts before preparing the final support package. Exact business travel dates may remain tentative, but uncertainty about the employer, professional services, or client arrangement should not be hidden behind a general travel description. The application needs to describe the real proposed job.
Separate flexible travel from unresolved employment terms
Ask the hiring manager which sites are confirmed, which are possibilities, and whether any involve another entity or different work. Use those answers to decide what requires review now and what can be handled through a later change-control process. Leave time for the employer to reconcile project documents with the offer.
Avoid promising an approval date based on a first-site arrival deadline, and do not begin U.S. services until the necessary authorization is effective. Fix the sequence of decisions and let the dates follow from it.
The employer, the professional duties and the credential must be settled first, because nothing else can be prepared around an unresolved position. Confirmed sites come next. Tentative travel can remain tentative to the end, provided it is described as tentative.
Work backwards from the operational need only to identify pressure points, never to set an approval date, since no route guarantees one. Leave a defined period for the employer to reconcile project documents against the offer, because that reconciliation regularly produces the change that matters most. If a site or entity is still unresolved when the package is otherwise ready, decide explicitly whether to proceed without it or wait, and record which was chosen.
No U.S. services should begin until the necessary authorization is effective, whatever the operational schedule requires.