Invite-a-friend referral with SMS and email for Iranian online stores

An invite-a-friend referral program lets a current customer share a unique code or link and unlocks rewards only after the friend’s verified purchase — not for empty clicks.

What is a referral SMS + email playbook?

It is acquisition through a happy customer: after delivery (or for a loyal segment) you send an invite email/SMS; the friend signs up or buys with the code; the system attributes the referrer; a one-sided or two-sided reward issues only when a valid condition is met (usually a paid first order).

Persian search intent is usually: “How do I build an invite-a-friend program with SMS/email that does not get gamed?” Answer: reward on verified purchase, block self-referrals, and send clear status messages.

Why demand is high now

Ad costs are high and Iranian loyalty/referral plugins that SMS codes show stores want cheaper acquisition. A satisfied buyer often converts better than a cold click — if the invite is simple and the reward actually pays out.

Who should be asked to invite?

• Recent buyers with a good delivery experience (not mid shipping delay!);
• Repeat / VIP segments;
• Positive reviewers;
• Not a cold email list that never purchased.

Good timing is often 3–14 days after successful delivery — or as a distinct touch in the post-first-purchase welcome path, not glued to a delay apology.

Suggested SMS + email sequence

Sample SMS to referrer:

“[Brand] invite a friend with your link; after their first order you get [reward]: [link] STOP11”

Anti-fraud rules to write on day one

1. Reward only after referred_purchase_completed (paid), not click;
2. Reject self-referrals and duplicate phone/email;
3. Monthly reward cap per referrer;
4. Cancelled orders claw back rewards;
5. Unique code per customer;
6. Promo SMS only with consent.

Coordination with welcome and win-back

• Put new referred friends into the welcome series, not only a code;
• Do not mix active referrers into dormant win-back blasts;
• Post-purchase cross-sell can sit nearby but should not replace referral;
• If the order is delayed, fix trust first, then ask for invites.

Step-by-step implementation checklist

1. Write a one-page reward policy;
2. Issue a unique code/link in profile or post-purchase;
3. Events: optional referral_shared, referral_signup, referred_purchase_completed, referral_reward_issued;
4. Invite + reward-status email/SMS;
5. Eligible segment;
6. Post-delivery journey with reward branch;
7. Weekly fraud review;
8. Metrics: valid invites, approximate CAC, friend purchase rate, abuse.

Common mistakes

1. Rewarding phone capture alone;
2. SMS to everyone without opt-in;
3. Asking for invites during a shipping crisis;
4. One public code for all customers;
5. Promising rewards without automatic issuance;
6. No cap for professional abusers.

How to build it in Leadara (truthfully)

Leadara gives you events, segments, journeys, email, SMS, popups:

1. Trigger an invite journey after order_delivered or a satisfied-buyer segment;
2. Bring the code/link from your store/loyalty system into the message (do not invent a magical built-in referral-code engine Leadara does not document);
3. On referred purchase, send “reward unlocked”;
4. SMS via Kavenegar/Nikaline with consent;
5. Enroll the friend into the welcome journey;
6. Internal AI Chat to draft invite copy;
7. Human Live Chat for reward disputes;
8. A popup can remind logged-in users of their code — do not confuse this with cold spin-to-win lead capture.

Do not invent a WhatsApp Business connector; stick to documented channels.

Simple math for reward design

Suppose paid CAC for a new customer is about X. If a two-sided reward totals roughly 0.3X–0.5X and friend purchase rate stays above ~20–30%, referral usually wins. Huge rewards without a paid-purchase filter can cost more than ads.

Sample invite email

Subject: “Share [brand] with a friend — you both benefit”

Hi [name], If you liked your recent order, send your personal link to a friend. After their first successful purchase, you get [referrer reward] and they get [friend reward]. Your link: [link] Short rules: reward after valid payment; no self-referrals; monthly cap [N]. Questions? Ask on Live Chat — a human will answer.

Measuring the first eight weeks

Weeks 1–2: launch only to satisfied buyers with one email; review fraud manually. Weeks 3–4: add reminder SMS and “reward unlocked”. Weeks 5–8: compare approximate referral CAC to paid; if abuse rises, tighten caps before quietly shrinking the public promise.

Reminder surfaces without spam

You can surface the referral link in these places without daily SMS:

1. Order-confirmation page with a copy-link button;
2. Account / loyalty area;
3. Footer of selected transactional emails (not all of them);
4. Popup only for logged-in users who have not copied the link yet.

Reserve SMS for high-value moments: the initial invite to a warm segment, and “reward unlocked”. Daily invite nagging buys opt-outs.

FAQ

When do we pay the reward?

After the friend’s verified purchase, not on click or signup alone.

Email or SMS?

Email explains rules; consented SMS is great for reminders and “reward unlocked”.

Is two-sided required?

Attractive, but needs caps. Starting one-sided is fine.

Is referral the same as affiliate?

No. Referrers are usually customers; affiliates are contracted partners.

When after purchase should we ask?

Often a few days after successful delivery — not mid delay.

How do we reduce fraud?

Paid purchase requirement, self-referral blocks, monthly caps, clawbacks on cancel.

Should we blast referral codes to the whole list?

Prefer eligible segments and a journey; untargeted blasts raise abuse.

How do we measure success?

New orders from codes, reward cost vs CAC, and repeat purchase of referred customers.

Wrap-up and next step

This week: write a one-page reward policy, wire unique codes and a referred-purchase event, build one post-delivery invite email plus a reward SMS, and drop friends into welcome. Acquisition from happy customers is cheap if you close fraud on day one.

Related reading

• Welcome email + SMS series: a practical 7–10 day sequence
• Post-purchase cross-sell and upsell: an SMS + email playbook to lift AOV
• Win-back for dormant customers at 60–90 days: segment to SMS + email