Register and participate in a Keelvar event. Receive an invitation email and click Accept invitation. For new users without a Keelvar account, click No, register to create an account. Enter account details to register. Confirm the account by clicking Activate my account in the follow-up email. Create a password following the guidelines and click Change Password. Sign in to the platform using the Continue button. Access new invites in the Invites tab. Click Accept to open the event. The Overview Tab displays event information including description, schedule, and participating parties. Navigate to the RFI Tab to answer RFI questions. Complete all marked RFI questions with progress tracking showing the number of completed questions. Answer gating questions to unlock the bid sheet. Click Confirm gating responses to save responses and unlock the bid sheet. Submit RFI responses offline by clicking Respond offline to download an Excel questionnaire and upload the completed file. Access the Bid Sheet tab to submit bids online or offline. Click Bid online to submit bids online. Enter bids and required information for each lot with yellow cells indicating bidder-input cells. Complete all mandatory cells marked with Mandatory text above the column for each lot being bid on. Leave all cells in a row empty for lots not being bid on. Click Submit changes in the top-right corner to submit the bid sheet. A banner confirms bid receipt with the message Your bids have been received by the purchaser. Modify bids while the round is active by repeating the submission steps. Track progress in the Overview Tab using the Event Participation box showing total RFI questions answered and bids submitted.