The Portuguese Association of Congenital Disorders of Glycosylation and Other Rare Metabolic Diseases (APCDG), together with the CDG & Allies Professionals and Patient Associations International Research Network (CDG & Allies - PPAIN) are promoting the 5th World Conference on Congenital Disorders of Glycosylation (CDG), in a digital format from May 13th to 16th, next week. This event is considered the largest event on CDG worldwide, where currently more than 400 participants have registered, including families, professionals and representatives from the pharmaceutical industry.