When a customer is looking at more than just the price of a commodity, which document is typically sent to a vendor?

When a customer seeks information beyond just the price of a commodity, a Request for Proposal (RFP) is the most suitable document to send to a vendor. An RFP allows the customer to outline their specific needs, requirements, and criteria, inviting the vendor to provide detailed solutions that address those needs rather than simply quoting a price.

The RFP process is typically used when the purchasing decision is based on various factors such as service quality, technical capability, and overall value, rather than solely on cost. This document encourages vendors to present comprehensive proposals that can include pricing, but also details on how they will meet the customer's requirements, timelines, and qualifications.

This approach helps customers evaluate different vendors on multiple aspects, ensuring they choose the best option to suit their needs rather than making a decision based on price alone. In contrast, a Request for Quotation is more focused on obtaining price quotes, while a Request for Information is primarily about gathering general information without the expectation of a detailed proposal. An Informally Solicited Proposal usually does not follow a structured process and is less formal than an RFP.