The aim of this event is to maximise dissemination of two key guidelines: The Chicago Classification version 4.0: Diagnostic testing of esophageal motility – state of art 2021, and The Lyon Classification v1.0: Towards a Conclusive Diagnosis of Gastro-Esophageal Reflux Disease. The launch will take place on the FNM2020 Virtual Conference Portal and registration will be free of charge.