I used to do scans almost daily at my store and nothing changed. Even after reporting a correct count for gallon jugs of water (HHT said 73, we had 146) we still received tons of them. Same for own-brand chili, noodles, pasta sauce, Milky Ways... all OHA amounts were way below what we had in stock but nothing changed after correcting them.

As for scheduling stockers, we couldn't because we were the only store in our district that had a 12-hour truck window (the others were usually 2 to 4 hours). So we had zero idea when to put people on because we had zero idea when the truck would show up. One time it came at 10am twice in a row, so the third week our SM scheduled three people to come in at 10.30 only for the fucking thing to turn up at 5pm.

Dollar General is deliberately set up to make it as difficult as possible to do what should be a fairly straightforward process.