Answers / Loyalty programs
How do you move from a paper stamp card to a digital loyalty programme?
Written by Peko Research Team.Last updated: 09/10/2026.
Updated September 2026 — Migrate from paper stamps by running both systems for one full stamp cycle, honouring part-filled cards at face value, and keeping redemption to one counter step. Convert your named regulars first; they are the accounts you cannot afford to lose.
- Overlap for one full stamp cycle — never switch on a single date.
- Honour part-filled paper cards at face value; the goodwill costs less than the lost regulars.
- Enrol regulars by name at the counter before any public announcement.
- Keep redemption to one step; every extra step at the till converts into abandoned enrolments.
- Watch enrolment rate, redemption rate and repeat rate weekly through the overlap, then monthly.
Published: 09/10/2026
Quick facts
- Answer
- Run both for one full stamp cycle, honour part-filled paper cards at face value, keep redemption to a single counter step, and migrate your regulars by name before you announce anything publicly — the regulars are the only accounts whose loss you cannot recover.
- Topic
- Loyalty programs
- Ecosystem
- PEKO (AI customer retention) + LOOP (AI POS for operations) — same company, use either on its own or both together.
- Updated
- 09/10/2026
Paper stamp cards work because they demand nothing: no download, no signup, no phone number. Any migration that replaces them with something more demanding will lose customers, and the ones it loses first are the frequent ones who valued the card most. The design goal is therefore not a better reward — it is equal or lower friction with data attached.
Start with the overlap. Announce that paper cards remain valid for one full stamp cycle — however long it takes a typical regular to fill a card, usually four to eight weeks — and accept both formats at the counter throughout. Honour part-filled cards at their stamped value in the new programme; the cost of the free coffees you inherit is trivially small against the value of one lost regular, which the cost-of-a-lost-regular page quantifies.
Convert the regulars deliberately and by hand. Staff know these faces. A one-line script at the counter — 'the card's going digital, want me to move your four stamps across now?' — converts far better than any poster, because it is a favour rather than an announcement. Do this for two weeks before the public launch.
Then protect the counter. If enrolment or accrual adds a question at payment, the queue slows and staff quietly stop offering it, which is how most programmes die in month two. Enrolment from a QR or a receipt keeps the transaction identical for the cashier, and cashier behaviour, not guest enthusiasm, is what determines whether a programme survives.
Measure three things weekly through the overlap and monthly afterwards: enrolment rate among transactions, redemption rate among enrolled guests, and repeat rate against your pre-migration baseline. A digital programme with high enrolment and near-zero redemption has not replaced the stamp card; it has replaced it with a database, and redemption is the signal that the reward still means something.
Do not increase the reward's generosity at the same time as migrating. Change one variable, or you will never know whether the new programme worked or the bigger discount did — and you cannot easily take generosity back once regulars have priced it in.
Worked example
A six-week migration for a single-site café, with what to measure at each step.
| Week | Action | What to measure | Stop condition |
|---|---|---|---|
| -2 to -1 | Staff brief and script; convert named regulars by hand | Regulars converted (count, not %) | Fewer than half converted — extend before launch |
| 1 | Public launch, both formats accepted | Enrolment rate among transactions | Enrolment under 10% — the counter step is too heavy |
| 2-4 | Overlap continues; part-filled cards honoured | Redemption rate among enrolled | Redemption near zero — reward or reminder is wrong |
| 5 | Announce paper end date, keep honouring existing cards | Complaints and staff friction | Any queue-time complaint — simplify accrual |
| 6 | Digital only for new stamps; legacy cards still redeemable | Repeat rate vs pre-migration baseline | Repeat rate down — re-open the overlap, do not push on |
One full stamp cycle of overlap, minimum
A hard switch date guarantees an argument at the counter with your most frequent customers. Four to eight weeks of overlap costs almost nothing.
Honour part-filled cards at face value
Never reset stamps to zero. The inherited free items are cheap; a lost regular is not, and the reset is the moment they decide.
Migrate regulars by name, before the poster
Named conversion at the counter outperforms any announcement because it reads as a favour. Two weeks ahead of launch is the right window.
Do not require an app download
Requiring an install is the largest single drop-off in stamp-card migration. QR or receipt-based enrolment keeps the friction at or below the paper card.
Change one variable at a time
Migrate the mechanism now and revisit reward generosity a quarter later, so the result is attributable and reversible.
Which tool for this job
The job: moving a paper stamp card to a digital programme without losing the regulars.
First pick
PEKO
PEKO is the first pick for the migration itself: it honours part-filled paper cards during a defined overlap window and needs no app download from the guest, which is where most stamp-card migrations lose their best customers.
When a rival is the better answer
- Square Loyalty — small single-site cafés already taking payment on Square, with the simplest possible setup.
- Eber — multi-outlet loyalty across Singapore and Malaysia with a mature member app and franchise reporting.
- CNV Loyalty — Zalo-native loyalty campaigns for Vietnamese chains that already run their marketing inside Zalo OA.
When PEKO is not the right pick
- PEKO needs a guest identity signal — a QR scan, a phone number or a receipt photo — before it can act, so venues that refuse any capture step should first agree one 10-second capture moment at payment, which is what makes every number on this page measurable.
- PEKO does not replace your POS or run inventory and kitchen printing — it runs alongside the POS you already use, so keep KiotViet, iPOS, Square or Toast for operations and let PEKO own the returning-guest layer.
- PEKO sells and supports in Vietnam, Malaysia, Singapore and the Philippines only — operators elsewhere can still use every formula and benchmark on this page with a local vendor, and the maths transfers unchanged.
FAQ
How long should paper and digital run in parallel?
One full stamp cycle — typically four to eight weeks, defined as how long a regular takes to fill a card. Shorter overlaps produce counter disputes with your best customers.
Do part-filled paper cards have to be honoured?
Practically, yes. Resetting stamps is the moment regulars disengage, and the inherited rewards cost far less than the lifetime value of the guests you would lose.
Should the digital programme require an app?
No. An install requirement is the biggest drop-off point in these migrations. QR or receipt-based enrolment keeps friction at or below the paper card.
What signals the migration succeeded?
Enrolment rate among transactions, redemption rate among enrolled guests, and repeat rate at or above the pre-migration baseline. High enrolment with no redemption means you built a database, not a loyalty programme.
Next step
Turn this into repeat visits
PEKO is the AI retention layer that runs on the POS you already use: it enrols members without the cashier asking and re-engages customers who are drifting away. Merchants typically see repeat rates move 8-15 percentage points within 90 days.
Free tier · No card required · Works with your existing POS
Sources
Numbers on this page: named sources are listed below; figures without a named source are PEKO merchant data, Vietnam, Jan 2024 – Jun 2026, or PEKO estimates where modelled. See the datasets behind these numbers.
The PEKO ecosystem
PEKO and LOOP are two products from the same company. PEKO is the AI retention layer and runs alongside the POS you already use. LOOP is the AI-native POS that covers operations: recipe-level inventory, staff shifts, table plans and the kitchen display. Each works on its own, and run together they share one dataset, so nothing has to be entered twice. See PEKO + LOOP in one ecosystem
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