In this article
  1. What an RFI is and when to use it
  2. What an RFP is and how it differs
  3. The correct sequence: RFI first, RFP second
  4. What each document should and should not contain
  5. Common questions about RFI and RFP in agency selection

An RFI vs RFP distinction comes down to timing and depth: an RFI (Request for Information) is a lightweight screening tool used to build a longlist, while an RFP (Request for Proposal) is a detailed brief sent to a shortlist asking agencies to commit to a specific approach and commercial proposal. In media agency selection, using both in sequence, rather than skipping straight to the proposal stage, consistently produces better-matched shortlists and stronger final pitches.

You are preparing a media agency review and your list of potential partners runs to fifteen names. Sending all fifteen a full proposal brief would waste their time and yours. The solution is a structured two-stage (and in some cases three-stage) process, and understanding exactly what each document does is the first step.

What an RFI is and when to use it

An RFI is a short, standardized questionnaire sent to a broad group of agencies. Its purpose is qualification, not evaluation. The central question it answers is simple: does this agency meet our basic criteria? Can they serve our markets, handle our budget scale, demonstrate relevant category experience, and show appropriate team depth?

A well-constructed RFI for media agency selection typically covers basic topics: agency ownership and independence, billings by market and channel, relevant client experience, team structure, technology and data partnerships, and any potential conflicts of interest. Responses need to be comparable across agencies, which means the questions must be closed or semi-closed rather than open-ended essays.

The RFI is deliberately low-burden. Agencies should be able to complete it in a few hours. That matters because you want candid, accurate responses, not polished marketing documents. Keep it to five to eight pages maximum, set a short response window of one or two weeks, and resist the temptation to ask for anything that belongs in the RFP.

The output of the RFI process is a shortlist, typically three to four agencies, that you can brief in depth.

What an RFP is and how it differs

Where the RFI asks “can you do this?”, the RFP asks “how will you do this, and at what cost?” The RFP is a substantive document that requires agencies to invest real time: analyzing your business, developing a strategic media approach, proposing a team, and submitting commercial terms.

A media agency RFP typically includes your full media brief (while managing confidentiality), covering objectives, target audiences, budget ranges, geographic scope, and performance expectations, alongside specific questions about strategic approach, channel planning methodology, buying model transparency, data and measurement capabilities, and fee structure. It may also include a scenario or planning task designed to reveal how the agency thinks, not just what it knows.

Because the RFP demands significant senior time, you have a professional obligation to limit the field to agencies that have a realistic chance of winning. A fair, well-run process respects that investment and earns the agencies’ best people in return. We are not against agencies; we are against not knowing which ones genuinely belong in your review. Sending an RFP to eight agencies is neither fair nor efficient. Three to four is the appropriate range.

The RFP response forms the basis for the chemistry meeting and case round that follow. For a closer look at how those later stages work, see what the chemistry meeting and case round reveal about agency fit and capability.

The correct sequence: RFI first, RFP second

The most common mistake in agency selection is skipping the RFI entirely and sending the RFP to a large field. This creates three problems. Agencies that were never genuinely competitive invest significant resources for no return. The quality of RFP responses declines when agencies sense they are one of ten or more. And your evaluation team drowns in material.

The correct sequence is straightforward:

  1. Build an initial longlist of ten to fifteen agencies based on market knowledge, referrals, and desk research
  2. Issue the RFI and evaluate responses against a consistent scoring framework
  3. Reduce to a shortlist of three to four agencies
  4. Issue the full RFP with sufficient time for agencies to respond seriously, three to four weeks is standard

This sequence is a core component of the media agency selection process, step by step, and getting it right determines the quality of everything that follows.

One practical note: if your longlist is already limited to four well-qualified agencies, you may choose to skip the RFI and proceed directly to the RFP. The RFI earns its place when genuine uncertainty exists about which agencies belong on the shortlist.

What each document should and should not contain

Clarity about document scope prevents two recurring problems: RFIs that balloon into de facto RFPs, and RFPs that bury agencies in procedural questions that belonged in the RFI.

The RFI should contain: basic credentials, conflict screening, market and capability confirmation, and a brief agency overview. It should not contain strategic questions, planning scenarios, fee requests, or anything requiring original thinking.

The RFP should contain: the full media brief, strategic and methodological questions, a planning task or scenario, team and governance questions, transparency and data questions, and commercial terms including fee structure. It should not contain questions you already answered in the RFI, or questions whose answers will not actually influence your decision.

A well-structured RFP also signals something important to the agencies receiving it: that the advertiser is serious, organized, and worth pitching to. Agencies allocate their best people to reviews where the brief is clear and the process is credible. If you are operating across multiple markets, the RFP design becomes even more critical. Multi-market agency selection introduces additional complexity around market-specific requirements, local agency relationships, and coordinated evaluation criteria that the RFP must address explicitly.

Common questions about RFI and RFP in agency selection

What does RFI stand for? RFI stands for Request for Information. In procurement and agency selection contexts, it refers to a structured questionnaire used to gather standardized information from a broad set of candidates before narrowing the field.

Can you skip the RFI and go straight to the RFP? Yes, if your longlist is already small and well-qualified, typically four agencies or fewer, an RFI adds limited value. The RFI is most useful when you have genuine uncertainty about which agencies meet your baseline criteria.

How long should an RFI response window be? One to two weeks is standard. Longer windows do not improve response quality and slow down the overall review timeline.

What is the difference between an RFP and an RFQ? An RFQ (Request for Quotation) focuses primarily on price and commercial terms. In media agency selection, the RFP typically incorporates commercial questions rather than using a separate RFQ, since strategy, media rates and fees are usually evaluated together.

Who should receive the RFI? Any agency that appears on your initial longlist and for whom you have insufficient information to make a shortlisting decision. Agencies you know well from prior relationships may be able to skip the RFI and proceed directly to the RFP, at your discretion.

Getting the RFI vs RFP distinction right is not a procedural detail. It is what makes the difference between a review that surfaces your best possible agency partner and one that produces an exhausted shortlist and a selection you second-guess six months later. If you are ready to move forward, the media agency selection process, step by step maps out every stage that follows, and the media agency mileage scan can help you assess where your current setup stands before you begin.