1. Restate the search as one RFQ line
A converter-style 50-qty search does not tell a factory the paperboard caliper, tuck style or fill. Write product format and intended contents, then quantity by artwork in pieces or cartons. Name material, size and board grade. Add print colors, finish and whether a sample carton is required before mass production. Put the destination state or postal code and the requested delivery date on the same line. Required product documents stay attached as a list, not as a website badge. A 50-piece digital proof and a 10,000-carton offset reprint remain two commercial objects even when they share a die line.
2. Ask every factory the same commercial exclusions
Piece price is not total cost. Offset plates, flexographic printing plates, die-cutting tools and window-patch tooling sit outside the unit. Artwork revisions after the approved die line are a separate charge. Freight to the named US ZIP is not FOB factory. If a buyer later compares two replies, those four items must appear on both or on neither. This desk does not publish a discount percentage because no same-spec, same-quantity, same-delivery pair is on file. Supplier preference (high-end, mid-range, budget or undecided) is a buyer choice, not a verified rating.
3. Match factories to the written board, not to a directory name
An 18-24 pt SBS carton, a CCNB food carton and a kraft board mailer carton are different machines and different documents. We circulate the same brief and collect replies that name paperboard caliper, crease rule and whether window film is on the first lot. Food-contact and migration testing files belong to the named construction. Recycle or Forest Stewardship Council wording is accepted only with the corresponding batch file. Digital short-run color and conventional offset color are not interchangeable proofs unless the factory writes that the production process will match the sample.
4. Coordinate samples and keep print on the same revision
A digital 50-qty carton and a 4-color offset plus aqueous coating mass run are not interchangeable color proofs. Ask the factory which process will produce the production lot, then request a sample on that process or an agreed delta. Burst strength on a corrugated shipper is not carton evidence; keep folding cartons and corrugated boxes on different RFQs. After samples, return to the inquiry options or send the updated brief. The RFQ checklist note lists the same fields.