High profile and high value events are generally considered "opt-in" events. In order to list tickets for an opt-in event, you must receive approval based on the criteria that is required for that specific event.
For most events, approval is based on a seller's ability to provide proof of purchase, delivery method, and overall account standing with Vivid Seats. Additional terms and conditions may be required prior to listing inventory. If you believe that your tickets are not showing for an opt-in event, please submit a support ticket to the Seller Services department to determine what documentation is necessary in order to list.
Additional information on opt-in events can be found in section 3.2 of the Large Seller Handbook.