Hi @Justin_Cain - I recommend this as a base design for the scenario you describe:
3 tables - Pallets, Pallet Items and Products. It all comes together in the Pallet Items table, which has linked fields to both Pallets and Products:
![Screenshot 2021-02-10 at 21.55.05 Screenshot 2021-02-10 at 21.55.05](/t5/image/serverpage/image-id/17538iB5952543C1646A09/image-size/large?v=v2&px=999)
This is the place where you can add your code date to each product on a pallet