APMA Launches Affiliate Marketing Case Study Library

The Affiliate & Partner Marketing Association (APMA) announced its Proven Partnerships case study library on November 9, 2026. The collection brings together member accounts of how brands and their affiliate partners changed programs, set payment terms, and measured results, according to the APMA’s launch announcement.

UK brands invested £1.8 billion in affiliate and partner marketing in 2025, according to the APMA’s State of the Affiliate Nation recap. How advertisers credit publishers earlier in the customer journey was also a topic at the association’s annual UK affiliate market briefing.

Key Takeaways From the Proven Partnerships Launch

• Five APMA members contributed the nine launch studies.
• The first cases span sectors including fitness, retail, travel, and financial services.
• The APMA wants to add examples from more sectors and types of partnership.

Nine Affiliate Partnerships and Their Reported Results

The studies cover decisions such as who gets credit for a sale, how to price a placement, and which publishers to recruit. APMA links to the full reports in the Proven Partnerships case study library.

Runna Moves Its Ambassador Program to Everflow

Runna moved applications, referral tracking, and payments from spreadsheets to Everflow. The running app tracked signups, trials, and paid subscriptions by ambassador. Everflow reports that active ambassadors increased by 289% within 90 days and that ambassador payouts rose 252% year over year in a later follow-up.

Acceleration Partners and CNET Group Track AI Search Visibility

The companies worked with an unnamed financial services brand on a tax-season campaign with content across CNET, PCMag, and ZDNET. Acceleration Partners reports that the brand’s share of voice in tracked AI-generated answers rose from 22% to 45%. Finder CEO Jon Ostler discussed what happens to publisher referrals when AI answers cite financial comparison content in Affiverse’s podcast on AI search and finance affiliates.

Lo/Digital Reviews Fraud and Sales Attribution

Lo/Digital says it removed fraudulent sub-network publishers from an unnamed retailer’s affiliate program and reviewed how it credited publishers earlier in the customer journey. The agency reports that combined program revenue rose 17% between comparison periods and affiliate return on investment reached 8.6x. Rich Kahn explained how affiliate fraud can divert credit for legitimate sales in Affiverse’s webinar on detecting affiliate fraud.

Marks Electrical Cuts Its Cost per Acquisition

Marks Electrical shifted budget toward higher-performing publishers and refined cashback and voucher promotions with Tradedoubler. The network reports that average cost per acquisition fell 15% and affiliate return on investment increased 15%.

bonprix Prices Browser Start Page Placements

Fashion retailer bonprix and Tradedoubler placed the retailer’s logo on browser start pages. They started with a fixed fee and a low cost per acquisition through VEVE, then moved selected partners to a higher cost per acquisition. Tradedoubler says browser partners accounted for nearly half of bonprix’s order value on the network in Germany.

Huawei Reinvests in Its Affiliate Publisher Mix

Huawei and Tradedoubler refined how they grouped publishers and offered performance incentives to encourage more activity. Over the 12 months covered in the study, the network reports affiliate revenue rose 87% year over year, and average order value increased 16%. Huawei UK and Tradedoubler also discussed how they evaluated publishers and allocated budget in Affiverse’s webinar on Huawei’s affiliate growth.

IDS Shares More Lead Data With Media Buyers

Integrated Data Solutions used Everflow to show media buyers how leads progressed to outcomes such as appointments and sales. The network also offered faster payments and paid some ad costs up front. Everflow reports that IDS revenue grew ninefold year over year.

Intermundial Works With Specialist Travel Publishers

Travel insurance provider Intermundial and Tradedoubler focused on publishers such as travel blogs and comparison sites. The case study reports a 9% revenue increase and a 27% rise in conversion rate, with cancellations below 2%.

Itaka Broadens Its Affiliate Publisher Mix

Polish travel operator Itaka tailored its arrangements with publishers and added first-party tracking with Tradedoubler. The APMA reports that affiliate sales rose 50% year over year, return on ad spend improved 10%, and cost of sales fell 9%.

What the Library Means for Affiliates

A publisher pitching a placement can use the case closest to its own work to decide what to report. A browser partner can show how fixed fees and performance payments contribute to total cost. A travel publisher can agree when bookings count and how to handle cancellations. Reliable records underpin both approaches and feature in the APMA’s case for UK affiliate tracking reform.

The results come from APMA members. Before using a figure to set a target, affiliates can check the baseline, reporting period, and rules for crediting sales. A brand trying to estimate incremental sales can compare the campaign group with a similar audience outside it. Affiverse covered that measurement challenge in its webinar on affiliate sales impact.