When I request a bid update, does it require the vendor to fill out a completely blank bid form?

When a vendor is requested to update a bid, the vendor will receive their previous bid in a editable format. This allows them to make edits without having to re-enter previously submitted information. The vendor could very easily click Resubmit Bid and not change a thing if they wanted. The vendor may also decide to decline the bid update.

When requesting a bid update, the project manager may send a  message to the vendor specifying a reason for the bid update request.