..about sales promotion. And surely "indentique" is a typo for "identique"? As for "déblocage", I imagine the meaning is that given in the Free Dictionary:
"Lever les obstacles qui empêchent l'évolution d'une situation: Débloquer une négociation. Débloquer les salaires, les prix, permettre leur variation"
http://fr.thefreedictionary.com/débloquésThat would be "unfreeze" or "deregulate" in a broader context, but not sure here...Is it saying the sales promotion would free up the identical prices so items can be priced differently? So maybe "varying" the prices? Not at all sure, just brainstorming...