Avenberg, a performance-driven e-commerce advertiser, worked with marketing agency Effectix and Adform to expand its dynamic product retargeting beyond classic pay-per-click (PPC) platforms in the Czech Republic. The campaign combined fully customized dynamic creatives with optimization strategies focused on measurable business outcomes. This approach gave Avenberg greater control over creative execution, extended its reach beyond existing in-platform audiences, and delivered more conversions without compromising efficiency. Compared with equivalent dynamic retargeting activity on classic PPC platforms, the campaign reduced acquisition costs and increased return on ad spend.



Effectix worked with Adform to extend Avenberg’s dynamic retargeting beyond classic PPC platforms and gain greater control over both creative execution and campaign optimization. Adform’s open ecosystem and retargeting capabilities enabled the team to move beyond predefined formats, limited inventory, and repeatedly served in-platform audiences. This provided a more flexible and scalable performance layer designed to deliver measurable returns within the campaign horizon. Adform IQ supported the approach by combining optimization models with data-driven insights to improve campaign performance continuously.
Avenberg’s existing dynamic retargeting activity on classic PPC platforms delivered stable results, but those channels limited creative flexibility and continued to re-serve the same in-platform audiences. As existing demand became exhausted, cost per conversion began to increase and reach hit a natural ceiling, restricting further growth. The challenge was to unlock additional scale while maintaining strict performance targets, improving creative quality, and increasing product relevance.
Effectix implemented Adform’s dynamic product retargeting, combining fully customized creatives with performance-driven optimization. The team developed a custom dynamic banner template that provided full control over layout, messaging, and visual hierarchy while maintaining alignment with Avenberg’s brand and campaign objectives. Ads were personalized using user behavior and dynamically displayed products that users had previously viewed, increasing the relevance of each impression.
The campaign initially used a CPC Quality strategy to gather sufficient data on user conversion behavior. Once enough data had been collected, Effectix switched to an Increase ROAS strategy. Adform IQ then optimized bidding continuously in real time against Avenberg’s return objectives, supporting additional conversion growth while maintaining efficiency.

Chief Marketing Officer, Avenberg
“Adform gave us the flexibility we were missing, both in how our ads look and how they perform. We were able to scale our retargeting beyond what our classic PPC platforms allowed while actually improving efficiency, which is key for our performance-driven strategy.”

RTB Teamleader, Effectix
“The combination of fully custom creatives and Adform’s optimization capabilities let us push dynamic retargeting past the ceiling of the classic PPC platforms, more conversions at a lower CPA and higher ROAS. The system learned quickly and continuously optimized towards the client’s real business goals.”