UDC sticker their own pallets. UDC shipped it on Monday, your DC received it Friday.
Inbound Problem Solver deals with external vendors, it is Inbound Problem Area that us responsible for internal discrepancies.
If you are in an auditing type role I would ask your OM/Leads/IB problem area to explain more to you but basically UDC noncon always has issues with errors.
Sometimes the errors are because they haven't finished throwing the UDC yet.
It is best practice to set it down and notate the error and time it was last checked (also to check a few more boxes on the pallet to see if they all give the same error) and then have somebody try it again before end of shift or the next day. Then call Problem Area.
The miscellaneous pallets are just straight from the UDC and there is nothing IB can do about that. A skilled sorter can make short work of even the worst of them. In fact I usually cherry pick them because I can sort them at 200% fairly easily.
I can see how having to audit the pallet prior might be awkward but thats a quirk of your DCs system you need to bring up with your leadership.
Any leftover labels, incorrect labels, or leftover boxes missing labels are just rework at that point. The UDC is equally prone to misspicks as we are, thats all.
I think I covered all the bases.
These are all great points and questions you are bringjng up in these posts but ut would do you much better to ask them to your direct leadership, especially since your DC is trialing an original process that I don't believe any others are.