@KateShipman Donovan hits the nail on the head for adventures not previously entered, but if I understand the original query, these adventures were entered, but never approved and you are trying to move them off the list by marking them as approved. If this is the case, you’ll want to follow what @Stephen_Hornak said and login to Scoutbook legacy (classic) and go to the “needs approving” report found in the Reports menu on the Pack page. This will hopefully allow you to mass approve all old adventures and clean it up going forward. You may also want to mark them as “awarded” from the “needs awarding report” so they will completely “drop off” and not attempt to be added to future Purchase Orders.
Eventually, it will be migrated to the area where you have your screenshot from Scoutbook+, however, that transition has not occurred, yet.
Hope this helps!