You must complete at least one (1) Optional Line Item or all Required Line Items in the Items (F) tab in APP in order for your Offer to be considered. The RFP process can be complicated to manage.Learn how to speed up your process with these steps and tips from proposal professionals. When responding to RFPs, always speak to the specific problems in the document. WHERE TO SUBMIT PROPOSALS: In order to be considered, the Offeror must complete and submit its proposal to the. The process is straightforward: Go to our site search, enter your criteria (such as destination, dates, group or event size) and click "Find" to see properties.