After processing and determining invalid parcels, an extension to the building would be added to process and fix them.
This new room would unlock new seperate machines to scan and relabel the new correct country flag sticker, country name, weight grade, express or not express, etc.
Initially the player would manually scan barcode showing up the correct parcel details, then a new machine for the desk would print out the correct sticker for the player to stick on top of the old one.
New type of parcel - letters, letters have handwritting fonts, some of it is messy writing so a new machine would use ai to decode the address and print a new label (not actually use ai just for lore).
Please feel free to add on your ideas i think this would be a cool addition to the game!