The 4Ps and 7Ps as a consistency check
Test each P of the mix against the positioning, find the ones that contradict it, and decide which to change first from lifetime margin per clinic.
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The marketing mix is usually taught as a form to fill in: product, price, place, promotion. It earns its keep as a test instead. Once the positioning is chosen, each P either tells the buyer the same thing or contradicts it, and the buyer believes the contradiction: a product claimed to recover $4,900 a month and priced at $9 is read as a $9 product.
McCarthy's four, and the three that services added
E. Jerome McCarthy's Basic Marketing (1960) grouped the decisions a marketer controls into four: product, what is sold; price, what it costs and how it is charged; place, where and how the buyer gets it; and promotion, how the buyer hears of it. Philip Kotler's Marketing Management (first edition 1967, later editions with Kevin Lane Keller) made the four the standard frame.
Bernard Booms and Mary Jo Bitner (1981) added three for services, where the customer takes part in producing the result: people, everyone the customer deals with; process, the steps the customer goes through to get the result; and physical evidence, the tangible sign that the service happened. Software sold by the month is a service in this sense. A clinic gets fewer no-shows only after its patients' phone numbers are imported and the reminder sequence is switched on, so the value depends on steps the clinic takes, not only on what the product does.
The check: one claim, seven questions
Write the positioning as one line, then ask of each P what the claim implies and what is actually in place. The claim, from Dunford's method: no-show reduction for clinics with one to five practitioners, about $4,900 a month recovered for $99, unlike phoning patients the day before.
Today's motion matches it. Clinic owners hear of the scheduler through association newsletters, book a demo that costs $300 all-in, and 38% buy, which is the $800 cost to win a clinic in the beachhead arithmetic. The check earns its place the day someone proposes changing one P.
The mismatch, worked: a $9 plan anyone can start
A growth lead, tired of $300 demos, proposes a $9-a-month plan that any clinic can start from the website without talking to anyone, sold through search ads. The homepage keeps the no-show positioning. Run the check:
Five of seven contradict the claim. Price: $9 is below the $29 tool, so the buyer reads it as the cheapest calendar, back on the scheduling ladder from Ries and Trout, a rung below the cheap one. Place: search ads on "appointment scheduling" reach the 2,000,000 solo consultants far more often than the 40,000 clinics. People, process and physical evidence fail together: with nobody to help, the clinic must import patient numbers and set the sequence itself, and the no-show rate that proves the claim exists only where reminders run.
Process decides whether the value happens at all, so price it. Assume 35 of 100 self-serve clinics switch the reminder sequence on in their first 30 days, against 90 of 100 after a 30-minute onboarding call. A clinic with reminders on sees its no-shows fall and churns at the module's 2% a month; one without them has bought a calendar and churns at 6%, like a solo consultant. Lifetime margin is monthly margin, at 80% gross margin, divided by monthly churn:
per clinic reminders on (2%) reminders off (6%)
$99 a month ($79.20 margin) $3,960 $1,320
$9 a month ($7.20 margin) $360 $120
blended lifetime margin per paying clinic
$9, self-serve 0.35 × $360 + 0.65 × $120 = $204
$9, onboarding 0.90 × $360 + 0.10 × $120 = $336
$99, self-serve 0.35 × $3,960 + 0.65 × $1,320 = $2,244
$99, onboarding 0.90 × $3,960 + 0.10 × $1,320 = $3,696
Which P to change
Price first, because it caps every other P. At $9 the best process returns $336 of lifetime margin per clinic, less than half the $800 a demo-won clinic costs. Sold as planned, self-serve through search ads at the $120 a paying solo account costs, it returns $204: ($204 − $120) ÷ $120 ≈ $0.70 per acquisition dollar, the solo-consultant economics ($0.67) that the beachhead arithmetic already turned down. No change to place, people or process lifts a ceiling set by $7.20 a month. Price is also the P the buyer reads first; a $9 tag says which ladder they are on before they reach the headline.
Process second. At $99, a 30-minute onboarding call, half an hour of the founder's time at the course's $100 loaded rate and so $50, moves blended lifetime margin from $2,244 to $3,696: $1,452 more per clinic, about 29 times its cost. It also brings the physical evidence into being. The clinic's own no-show rate before and after, shown at day 30, is the proof the positioning promised, and it exists only for clinics whose reminders are on.
The growth lead's real problem, the $300 demo, is a question of place and process, not price. The same newsletters could send owners to a $99 trial with a booked onboarding call instead of a demo. Whether that wins a clinic for less than $800 is a test with one number to watch, cost per clinic won, and PLG versus sales-led works that choice in full.
When the positioning is the P that moves
The check runs both ways. If the company can only ever sell self-serve at a low price, because it has nobody to take calls and no plan to hire, then the Ps are the truth and the positioning is wrong: it should be a cheap calendar for solo consultants, priced and sold for them. Decide which side is the fixed point by evidence. Here the positioning rests on a 55% win rate against paper and phone and on 60% of reviews citing the reminders; the $9 plan rests on a hope about volume. The Ps move.
In practice
To the growth lead: "The $9 plan contradicts the claim and returns about 70 cents per acquisition dollar against $3.95 today. If the problem is what a demo costs, let's test a $99 trial with an onboarding call against it, measured per clinic won." To the team: run the seven-row check before every price change, new channel or new plan, not after the churn shows. It takes 15 minutes and needs nothing beyond the positioning line.
The mistake that costs money is changing one P in isolation: cutting the price to fix a conversion problem the process causes. A clinic that would have paid $99 and takes the $9 plan instead gives up $3,960 − $360 = $3,600 of lifetime margin with its reminders on, and the poor conversion the cut was meant to fix came from reminders nobody switched on.
Check yourself
1. On a demo, a clinic owner asks for $49 a month for the first year, then $99. Estimate what the discount costs and decide.
The discount gives up $50 × 80% = $40 of margin a month. At 2% churn a clinic is expected to stay about 10.8 of the first 12 months, so the year costs about $430, more than half the $800 already spent to win the clinic, and it tells the owner the product is worth $49. Decline. If the objection is risk, offer proof instead: the clinic's own no-show rate at day 30, and the right to cancel then.
2. Clinics that cancel at month six say they are "not sure it is doing anything", yet their reminders are on. Which P is failing, and what is fixing it worth?
Physical evidence: the value happened and the clinic cannot see it. If a monthly report of the clinic's own no-show rate took churn among these clinics from 2% to an assumed 1.5%, lifetime margin would rise from $79.20 ÷ 2% = $3,960 to $79.20 ÷ 1.5% = $5,280, or $1,320 a clinic. Build the report before buying any more reach.
3. The growth lead tries again: keep $99 for clinics and sell the $9 plan under another name to solo consultants. Approve?
Not this year. The Ps are now consistent, but at $9 a solo consultant returns $7.20 ÷ 6% = $120 of lifetime margin against a $120 cost to win one: nothing left. Even at the segment's usual $15 the return is $200 against $120, which the beachhead arithmetic ranked last. The beachhead is a promise to say no for a year, and this is a no.