Hi pabloc82923542, Thank you for your answer I've already put the key (email in SHA 256) in an evar. The principal issue is that il my classification, which will be send every day, I could have severals lines with the same key and also severals lines with the same key in differents files The data in...

Hi everybody, I'm working for a retail company and I would like to import store sales from our customer whose have bought with their fidelity card but without any real actions on our website except visits. I'm actually following visitor whose have a loyality card on our website (with a cookie) and I...