Channels bought separately compete with each other and nobody notices
When search, social and display are managed as separate line items, each optimises to its own dashboard. The same customer gets counted three times, budgets get set by last quarter's reported ROAS, and no one is accountable for what the whole programme produced. The result is spend that looks efficient in every individual report and mediocre in the accounts.
Channels claiming the same customer
Search, social and display each count conversions their pixel touched. Summed, the reported total routinely exceeds actual orders, which makes cross-channel budget decisions guesswork.
Creative built once, run forever
Ad performance decays with frequency. Programmes without a testing and retirement cadence pay progressively more for declining attention, and the dashboard shows it as rising costs rather than tired creative.
Audiences overlapping
Separate campaigns frequently target the same people, bidding against each other and inflating your own costs. It is common and almost never audited.
No view of total efficiency
Without a blended target, nobody can say what a customer costs across all advertising — only what each platform claims in isolation.
Plan centrally. Buy everywhere. Judge on one number.
We start from the commercial target — what a customer can cost and still be profitable — then work backwards to which channels can deliver at that price and what role each plays.
Some channels create demand, some capture it, some retain it. Judging a demand-creation channel on last-click return guarantees it gets cut, which is why programmes that do it end up over-invested in retargeting and starved of new customers.
- Channel role definition — prospecting, capture and retention distinguished so each channel is measured against the job it is actually doing.
- Blended efficiency target — one CPA or ROAS across all advertising, tied to real margin rather than platform-reported returns.
- Creative production & testing — ads built per platform with a standing test programme and retirement rules for fatigued assets.
- Audience architecture — exclusions and overlaps managed so campaigns stop bidding against each other.
- Deduplicated reporting — one view of what advertising produced in total, reconciled against revenue in your own systems.
The role point: prospecting will always look worse than retargeting on last-click reporting, because retargeting reaches people who already decided. Judge them the same way and you will systematically defund the thing creating your demand.
How we build an advertising programme that scales
Six workstreams, measurement and margin first — because a target set from platform numbers rather than profit is the root of most overspending.
Margin & target setting
What a customer can cost and remain profitable, accounting for repeat purchase and lifetime value. Every other decision follows from this number.
Measurement foundation
Server-side tracking, deduplication and blended reporting so channels can be compared on the same basis rather than on self-reported figures.
Channel roles & mix
Which channels create demand, which capture it, which retain it — and what share of budget each warrants given your margin and growth goals.
Creative system
Modular assets produced per platform with a standing test calendar, win conditions and retirement rules for decaying performance.
Audience architecture
Exclusions, suppressions and overlap management so campaigns complement each other instead of competing for the same impressions.
Blended reporting
One view of total advertising efficiency reconciled against your own revenue, with platform figures shown as diagnostics rather than truth.
PPC accountable to your margin, not to a dashboard
The target comes from what you can afford to pay for a customer, not from what a platform says it achieved.
Targets set from margin
We start with what a customer can cost and stay profitable. Platform ROAS is a diagnostic, never the goal — it can be excellent while the business loses money.
Deduplicated, blended reporting
One honest number for total advertising efficiency, reconciled against your own revenue rather than summed from platform dashboards.
Channel roles respected
Prospecting judged on new customers, not last-click ROAS. Measuring demand creation like demand capture defunds your growth engine.
Creative at volume
Systematic production and testing, because automated platforms need variety to optimise against and creative is now the main performance lever.
We recommend cutting spend
If a channel is not incremental we say so, even though it shrinks the budget we manage. Managing ineffective spend is not a service worth buying.
Coordinated with organic
Paid planned alongside SEO so you are not buying clicks for terms you already rank first for — a common and entirely avoidable waste.
Why Businesses Choose SDM for Advertising
Same budget, very different outcomes. Point by point, here’s how a specialist partner compares to a typical agency or going it alone.
| What actually matters | With SDM | Typical Agency | In-House / DIY |
|---|---|---|---|
| Senior specialist on your account | Always | Often a junior | Stretched thin |
| Custom strategy built for your goals | Tailored | Templated | Guesswork |
| Deep audit before any work begins | ✓ | Surface-level | Skipped |
| White-hat, penalty-safe methods | Guaranteed | Varies | High risk |
| Plain-English reporting tied to revenue | Monthly | Jargon PDFs | None |
| Direct access to your specialist | ✓ | Account-manager relay | N/A |
| Targets set from your margin | ✓ | Platform ROAS | Guesswork |
| Deduplicated cross-channel reporting | ✓ | Summed dashboards | Per platform |
| Channel roles defined | ✓ | All judged alike | Undefined |
| Creative tested and retired | ✓ | Run till dead | Set and forget |
| Audience overlap managed | ✓ | Unaudited | Unknown |
| Ongoing competitor gap analysis | ✓ | One-off | Manual |
| Conversion-focused, not just traffic | ✓ | Traffic-first | Unclear |
| Premium tools included (Ahrefs, SEMrush) | ✓ | Sometimes | Costly extra |
| No long lock-in contracts | Flexible | 6–12 mo lock-in | N/A |
| Established agency, operating since 2017 | ✓ | Varies | Learning curve |
| Fast onboarding & early quick wins | ~2 weeks | Slow | Trial & error |
| Human, SEO-led content (no AI spam) | ✓ | Outsourced / AI spam | Time-heavy |
| Focus on compounding, long-term ROI | Core promise | Short-term wins | Slow & ad-hoc |
| Recovery from Google penalties | ✓ | Sometimes | Very hard |
20 reasons growing brands make the switch. See the difference for yourself →
One number: what a customer costs across everything
Platform figures are reported as diagnostics. The headline is always blended and reconciled against your own revenue.
Blended CPA
Total advertising spend divided by total new customers — the figure attribution windows cannot inflate.
Blended ROAS
All spend against revenue in your own systems, not the sum of platform claims.
New vs returning split
How much spend is acquiring customers versus re-reaching existing ones, which is where over-investment usually hides.
Creative win rate
Share of tested assets that beat control, and how fast winners decay with frequency.
Marginal CPA
What the next customer costs as budget scales — the number that identifies where efficient growth stops.
Four stages, repeated every month
Set the target from margin, fix measurement, cut waste, then scale.
Set the target
What a customer can cost given your margin and repeat rate. This becomes the single number every channel is held to, replacing per-platform ROAS goals.
Fix measurement
Server-side tracking, deduplication and blended reporting built before optimisation. The honest baseline is usually below what platforms were claiming.
Cut and restructure
Overlapping audiences separated, fatigued creative retired, non-converting placements removed and channel roles assigned.
Test & scale
Standing creative programme and sequenced audience expansion, tracked against marginal CPA so scaling stops before efficiency collapses.
Advertising in action — three sectors
Different models, the same method: one target, honest measurement, deliberate channel roles. The scenarios below are composites drawn from situations we encounter repeatedly — they illustrate method, not the account of any single named client.
The questions we get asked most
Direct answers on PPC channel mix, measurement and what paid media should be held to.