Referral invites
Members can invite friends by email straight from the landing page and widgets. The Invitation email template (Referral → Emails) controls what the friend receives — optionally including the coupon code itself (Include the coupon code in the invitation email). Guardrails are built in: self-invites are rejected (“Self invite is invalid!”), duplicate invites are caught (“Invitation already sent!”), and there’s a maximum invite limit per member. Track invites under Referral → Sales & Analytics → Referral Invites — each row shows referrer, friend, and status (Invited → Successful once the friend purchases). A per-member Invite History lives on each member’s profile.Fraud protection
Referral programs attract freeloaders; Shopjar ships several layers (Referral → Settings → Fraud Protection, unless noted):
IP fraud protection is enabled app-wide under Settings → General →
Enable IP based Advanced Fraud Protection.
Use cases & examples
Stop coupon-site leakage
Verified-email locking makes shared codes worthless.
Stop coupon-site leakage
Verified-email locking makes shared codes worthless.
Enable Lock rewards to verified emails. A code posted to a
coupon site fails at checkout for anyone but the person who
claimed it.
Customers-only referral program
Only people who bought can refer.
Customers-only referral program
Only people who bought can refer.
Set membership eligibility to Only existing customers with at
least one order — referrers vouch from experience, and fake
accounts can’t join to farm rewards.
High-discount program, maximum security
For rewards worth gaming: OTP + IP + verified email.
High-discount program, maximum security
For rewards worth gaming: OTP + IP + verified email.
Offering 25%+ rewards? Enable all three Growth-tier protections.
The friction is minor for genuine friends and decisive against
fraud rings.
Troubleshooting
A legitimate customer was flagged as fraud
A legitimate customer was flagged as fraud
IP detection flags shared networks (offices, households) too. Open
the reward in Referrer Rewards and approve it manually — the
flag is a hold, not a verdict.
Friends say they didn't get the reward email
Friends say they didn't get the reward email
Check the invitation and claim email templates are enabled
(Referral → Emails), and consider a
custom sending domain — emails
from your own verified domain land in inboxes more reliably.
Need help?
Book a call
Schedule a free call with our team for personal setup assistance.
Contact support
Chat with us directly — we’re happy to help with any question.
Install Shopjar
Get Shopjar Referral & Affiliate Marketing from the Shopify App Store.