Express Entry system have different eligibility criteria. The programs are: Federal Skilled Worker, Federal Skilled Trades Program and Canadian Experience Class. Thus ability to qualify under one of these categories is the first requirement under Express Entry.
Candidates in the pool are raked using a point-based system (CSR).Getting into Express Entry doesn’t guarantee invitation to apply, since applicants have to meet all eligible and admissibility requirements. Upon entering the pool, candidates are assigned a CRS score based on factors including education, work experience, language ability, and other criteria. Highest-ranking candidates are regularly selected from draw and invited to apply for permanent residence.