Most B2C programmatic accounts lose a third of spend to fees, fraud, and unviewable inventory before a single impression counts. We audit the supply path, rebuild targeting around real purchase signal, and hold the channel to the same incrementality bar as everything else in your mix.
The Problem
Supply path fees quietly eat a third of your budget before it reaches inventory
Programmatic buys pass through a DSP fee, exchange fees, and often reseller markups stacked on top of each other, and most B2C advertisers never audit the actual supply path their impressions travel through. A dollar budgeted can arrive at publisher inventory worth sixty or seventy cents once every layer takes its cut. Without a supply path audit, you're paying full price for a chain nobody has ever mapped.
Viewability and fraud eat into delivered impressions nobody checks
Standard programmatic buys, especially on open exchange inventory, routinely deliver a meaningful share of impressions that are never actually viewable or are served to bot traffic rather than real people. Brands running broad, low-CPM campaigns to maximize reach numbers often maximize exactly the wrong thing, because cheap inventory is frequently cheap for a reason. The impression count looks great in a report and represents almost no real audience exposure.
Broad audience targeting substitutes for real purchase signal
Programmatic's promise is precision, but most B2C accounts default to broad demographic or interest-based targeting because it's easy to set up and scales impression volume fast. Without layering in first-party purchase data, lookalike modeling off real customers, or contextual targeting tied to actual purchase intent, the channel behaves like a blunt awareness buy dressed up as performance media, and CAC reflects the mismatch.
Frequency and sequencing go unmanaged across a fragmented buy
When programmatic runs across multiple exchanges and formats simultaneously without unified frequency capping, the same consumer gets hit by the same creative a dozen times across different sites in a single day while others in the target audience see it once or never. Nobody's tracking sequential messaging, so a prospect who saw an awareness ad gets served the same generic message instead of a retargeting message that reflects where they actually are in the funnel.
How We Help
We start with a supply path audit, mapping exactly where budget goes between the DSP fee and the actual publisher inventory. Most accounts we inherit have never had this done, and the audit alone often surfaces enough fee stacking and low-quality inventory to fund a meaningful reallocation without adding a dollar of new budget.
From there we rebuild the buy around verified, high-viewability inventory and cut the reseller layers that add cost without adding value. We set minimum viewability and brand safety thresholds before a placement runs, and we consolidate supply paths where possible to reduce the fee stack. This alone typically recovers real budget that was previously lost to inventory quality issues nobody was checking.
Targeting gets rebuilt around actual purchase signal instead of broad demographics. We layer in first-party data – purchasers, cart abandoners, high-value customer lookalikes – and build sequenced creative that reflects funnel stage, so someone who's already seen an awareness message gets a different ad than someone who's never heard of you. Frequency capping gets unified across the buy so budget doesn't concentrate on the same handful of people while missing the broader addressable audience.
Measurement holds programmatic to the same bar as every other channel. Display and video have historically been measured loosely because click-through rates are low and attribution is murky, which lets underperforming spend hide. We run incrementality tests – geo holdouts or matched-market comparisons – to establish what programmatic is actually contributing beyond what would have happened anyway, and we report blended CAC by inventory type and audience segment so budget decisions are based on real contribution, not impression volume.
What we deliver
- Supply path audit – full fee and inventory mapping from budget to delivered impression
- Inventory quality rebuild – viewability and brand safety thresholds with reduced reseller fee stacking
- First-party targeting and sequencing – purchase-based audiences and creative matched to funnel stage
- Incrementality testing – geo holdouts that establish real contribution versus impression volume
Impression volume and audience reach are not the same as reaching a real, viewable person who was ever going to buy. Most programmatic waste isn't a targeting problem – it's a supply path nobody has ever audited.
Our Methodology
We run this as a 90-day sprint built around the two failures that quietly waste most B2C programmatic budgets: an unaudited supply path stacking fees and low-quality inventory, and targeting broad enough to function as awareness spend dressed up as performance media. The first 30 days are diagnostic – mapping the full supply path from budget to delivered impression, auditing viewability and fraud exposure, and reviewing current targeting against available first-party data. Days 30 to 60 rebuild the buy around verified inventory and purchase-based targeting, with sequenced creative matched to funnel stage. The final 30 days run incrementality tests and lock in reporting that holds the channel to the same bar as paid search and paid social.
What separates this from a standard programmatic retainer is that most agencies and trading desks get paid a percentage of media spend, which creates a structural incentive to keep budget flowing through the existing supply path rather than question it. We audit the fee stack and inventory quality first, because for most B2C advertisers the fastest path to lower CAC isn't more budget or smarter bidding – it's recovering the budget that was never reaching a real, viewable person in the first place.
How We Work
The first 30 days are audit and diagnosis. We map your supply path, pull viewability and fraud reporting from your DSP, and review current targeting and creative sequencing, coming back with a specific accounting of where budget is going rather than a generic media plan. Days 30 through 60 are rebuild – inventory quality thresholds, reduced fee stacking, and purchase-based targeting get implemented directly in the DSP. By day 90 we're running incrementality tests and reporting against blended CAC by inventory type and audience segment.
On our side, the team is a programmatic lead who owns supply path strategy and DSP management, plus an analytics specialist who handles incrementality testing and first-party data integration, both embedded with your team rather than routed through a trading desk relationship. From your side, we need DSP access, connection to your customer data for lookalike and retargeting audiences, and a point of contact who can approve inventory and budget shifts without a lengthy sign-off chain.
Cadence is weekly during the first 90 days, covering supply path health, targeting performance, and test results, with async Slack for anything time-sensitive like a fraud spike or a targeting opportunity. After the initial sprint, most engagements settle into a biweekly cadence with monthly deeper reviews. Typical engagement length is 3 to 6 months for the initial buildout, with many clients continuing on a lighter management retainer once the supply path and targeting are stable.
What to expect at each phase: month one often surfaces uncomfortable numbers about how much of prior spend was lost to fees and unviewable inventory. Month two shows visible change in inventory quality and targeting precision. Month three onward is where incrementality data starts informing real budget decisions instead of an impression-volume report nobody has stress-tested.
- CAC reduction through recovered supply path budget and improved inventory quality
- Higher viewability and lower fraud exposure across the buy
- Targeting shifted from broad demographics to real purchase signal
- Budget allocation tied to incremental contribution, not impression volume
If your b2c company needs programmatic advertising leadership, we should talk.
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Frequently asked questions
How much does a programmatic advertising engagement cost for a B2C company?
Most B2C programmatic engagements with us run $6K-15K monthly, depending on media spend under management and the complexity of the supply path audit. That's typically less than the DSP and trading desk fees most brands already pay without visibility into where the money actually goes. Larger, multi-exchange buys sit toward the higher end.
How long before we see results from a programmatic advertising engagement?
The supply path audit typically surfaces recoverable budget within the first 2-3 weeks. Inventory quality and targeting improvements show measurable change in viewability and engagement within 30-45 days. Meaningful CAC improvement, once incrementality testing is running, shows up in the 60-90 day range.
How does the programmatic advertising team integrate with our existing staff?
We work directly inside your DSP rather than through a layered trading desk relationship. Weekly working sessions cover supply path health, targeting performance, and budget allocation with whoever owns growth on your side. If you have an in-house programmatic buyer, we become the audit and optimization layer that keeps the supply path honest.
What makes Winston Francois different from a traditional programmatic agency?
Most programmatic agencies and trading desks are paid a percentage of media spend, which creates no incentive to question fee stacking or inventory quality in the supply path. We audit the full path from budget to delivered impression first, and we hold the channel to the same incrementality bar as paid search and paid social. We operate as an embedded team accountable to your CAC number, not your impression volume.
How do you measure ROI from a programmatic advertising engagement?
We track blended CAC by inventory type and audience segment, and we run geo holdouts or matched-market incrementality tests to establish what programmatic is actually adding versus what would have happened anyway. We also monitor viewability and fraud metrics directly, since impression volume alone tells you almost nothing about real reach. That combined view drives budget decisions.
What type of B2C company is the right fit for this service?
Consumer brands running meaningful display or video spend, typically $10K or more monthly, who have never had their supply path audited are the best fit. Companies coming off a trading desk relationship where impression volume looked strong but CAC didn't improve tend to see the fastest impact. The first step is the supply path audit – it usually surfaces the real problem within weeks.
