For the past two years, at the request of Union des marques, CESP has been developing a certification framework in the field of eRetail media. The initiative, led by Olivier Daufresne, was quickly joined by UDECAM. Alliance Digitale and Ilec have also contributed through their published work. Of course, the retail media networks were also involved, whether to take part in the discussion on the end-of-campaign indicators to be included, to validate the technical feasibility of the controls or for the pilot phase in which several of them took part. It was therefore a truly cross-industry effort that led to the development of the eRetail media certification standards.