Part 1
Ask suppliers the right question
An RFI (request for information) explores which suppliers are capable. An RFQ (request for quotation) asks for a price against a clear specification and quantity. An RFP (request for proposal) invites a broader solution when the method or scope is not yet fixed. Choosing the right document prevents comparing answers to different questions.
If three warehouses each buy the same packaging separately, they may receive three prices. Combine the demand and send the same specification, delivery terms and response deadline to qualified suppliers. Then compare price, freight, lead time, payment terms, quality history and ability to meet the required volume on one sheet.