Which document is used to invite suppliers to bid on specific products or services?

The Request for Quotation (RFQ) is the correct answer as it is specifically designed to invite suppliers to submit their bids or quotations for particular products or services. An RFQ provides detailed information on the specifications, quantities, and delivery requirements, allowing suppliers to respond with their pricing and terms. This document is commonly used when the purchasing organization knows exactly what they need and wishes to obtain pricing information from multiple suppliers to compare and evaluate options effectively.

In contrast, a Request for Information (RFI) is utilized when an organization seeks to gather more details about suppliers and their capabilities, but it does not solicit specific bids. A Request for Proposal (RFP) invites suppliers to propose solutions for a broader set of requirements, often including additional factors like project specifics and methodologies, rather than only pricing. A Supplier Evaluation Form is used to assess and document the performance or capabilities of suppliers rather than to solicit bids.