Call for tenders: Study on how online marketplace design influences user behaviour
The European Commission has issued a call for tenders for a study on user interactions with Digital Services Act (DSA) mandated features on Very Large Online Marketplaces (VLOMs). The study will focus on Articles 16 (notice and action), 30(7) (trader information), and 31 (compliance by design) of the DSA. The contract duration is 8 months with a maximum value of EUR 400,000. Tender submission deadline is 23 September 2026.
What changed
- Tender call opened for empirical study on user behavior with DSA-mandated features
- Study scope covers Articles 16, 30(7), and 31 of the DSA
- Contract value: EUR 400,000 maximum
- Contract duration: 8 months
Who is affected
Online marketplaces designated as Very Large Online Marketplaces (VLOMs) under the Digital Services Act; organizations with expertise in user experience research, behavioral research, quantitative/mixed-methods research, data analysis, and dataset development
- Deadline
- 2026-09-23
- Language
- EN