The manifest is your contract preview: weights, pack dates, substitution clauses, and handling notes. Read it before you bid, not after you win.
Checklist
Confirm UOM (case vs. kilo), country of origin if you need BOC alignment, and temperature class for chilled lines. Mismatch any of these and your ceiling should drop.
Bid on the document you can defend in the receiving bay.
Questions first
Use seller channels or support to clarify ambiguous lines-better to skip a lot than win a dispute.