Used to be a F&B TL. We organized our backroom according to sales floor pog. If an item was located on A5 (3)-1-4-2, our backroom aisle would mimic the same layout. So anything in that pog would be designated in that area. We labeled each backroom section accordingly. Was a tough transition but we were able to achieve it pretty consistently whenever we didn't get slammed with trucks. The market department alone would bring in anywhere from $60k-$90k on a regular day, just for reference.
Also need to take a look at your SFQ. When was the last time you guys did a deep audit? Your counts may be completely off. Sometimes all you need is a good ol' purge, to be honest.
Try partnering up with your leadership to see if they shift some hours for that. I would definitely look into your SFQs, OHs, but definitely purge your aisle and make sure your SFQ is accurate so all your time purging doesn't go to waste.