This document is a quick-reference guide for suppliers who would like to submit a response to a solicitation via the APP Supplier Portal. Present a Professional Proposal: Use a tender template or a bid sheet example to organize your information clearly and professionally.How do I submit a bid or proposal? All formal bids and proposals shall be submitted as specified in the solicitation document. Bonds must be from a corporate surety company licensed to issue surety bonds in the State of Arizona. Individual sureties will not be accepted. Though writing a bid proposal can seem daunting, following the steps in this article can increase your chances of success in bidding.