Microsoft previously said that once it acquires Activision Blizzard for $68.7 billion, it will honor any agreement should Activision Blizzard recognize a union.
Activision Blizzard has announced it will start negotiations with the Communications Workers of America (CWA) union on behalf of Raven Software quality assurance staffers.
Raven QA workers won recognition for their union, Game Workers Alliance (GWA), on May 23, with an 86% majority vote.
Raven is the first group to win union representation at Activision Blizzard.