Tracking links work well when a user clicks a link and arrives at a destination. But many affiliate promotion channels do not support clickable links -- podcasts, YouTube videos, TikTok posts, offline events, and word-of-mouth referrals. In these scenarios, promotional codes serve as the attribution bridge. The affiliate shares a code (e.g., "TRADER50"), the user enters it during registration or deposit, and the system attributes the conversion to the affiliate.
For prop trading firms, promotional codes are often the primary attribution method. Influencers on YouTube and Discord share coupon codes with their audience, and those codes map directly to challenge purchases. In iGaming, bonus codes tie specific deposit offers to affiliate partners. In Forex, promotional codes can be used to attribute IB referrals from social media channels.
How Coupon Attribution Works
The operator creates a promotional code and assigns it to a specific affiliate and commission deal
The affiliate distributes the code through their channels (video, social media, email, community)
A user enters the code during registration, deposit, or purchase
The system matches the code to the assigned affiliate and triggers the corresponding commission logic
The attribution is recorded regardless of whether the user clicked a tracking link
Promotional code attribution and link-based attribution can work together. If a user clicks a tracking link AND enters a promotional code, the platform needs a clear priority rule -- typically, the code takes precedence because it represents a more intentional action.
Managing Promotional Codes at Scale
A small program with 20 affiliates might manage codes in a spreadsheet. A program with 500 partners across three verticals cannot. At scale, promotional code management requires systematic controls: unique codes per affiliate, expiration dates, usage limits, and clear assignment to commission deals.
Management Dimension
Small Program (< 50 partners)
Scaled Program (500+ partners)
Code generation
Manual, individually created
Bulk generation with naming conventions
Assignment
One code per affiliate
Multiple codes per affiliate (by campaign, product, or season)
Expiration
Rarely used
Mandatory -- time-limited codes for promotions and seasonal campaigns
Usage limits
Not enforced
Enforced -- prevents unlimited redemptions from leaked codes
Fraud monitoring
Manual spot checks
Automated -- flag codes with abnormal redemption patterns
Promotional Code Fraud Risks
Promotional codes introduce specific fraud vectors that operators must monitor. The most common is code leaking -- an affiliate's exclusive code gets posted on a public coupon site, driving unqualified traffic that the affiliate gets credited for. Self-referral through codes is another risk, where affiliates use their own codes to claim bonuses or commissions.
Code leaking -- exclusive codes posted on public coupon aggregator sites
Self-referral -- affiliates using their own codes to generate fake conversions
Code sharing -- multiple affiliates sharing or swapping codes to manipulate attribution
Expired code reuse -- users attempting to redeem codes past their valid period
Monitor promotional code redemption patterns weekly. A code with a sudden spike in redemptions from a single IP range or geography often indicates it has been leaked to a coupon site. Set up alerts for abnormal redemption velocity.
Mitigations include limiting code usage counts, setting geographic restrictions, requiring minimum deposit or purchase thresholds before code activation, and running regular audits against known coupon aggregator sites.
Key Takeaways
Promotional codes are essential for attribution in channels where clickable links do not work -- podcasts, video, social media, and offline
Code attribution and link attribution can coexist, but operators need clear priority rules for conflicts
At scale, codes require bulk generation, expiration enforcement, usage limits, and automated fraud monitoring
Code leaking to public coupon sites is the most common fraud vector -- monitor redemption patterns and set usage caps