Can vendors still submit their proposal after the due date? August 02, 2024 14:26 Updated Yes, they're still able to submit proposals until such time that you close or mark the Bid as fulfilled. Related articles Creating a Bid - Training Guide Once a vendor is selected, how do you close the Bid profile? What time do Bid’s close? What does the vendor see when they click they view the proposal details? When you update the email address for a vendor will it automatically resend the Bid?