Adeera Hospitality and HSMAI MEA will offer sales, marketing and revenue staff four professional certifications including CHSL, CHDM, CRME and CHBA, supported by expert-led review courses.Adeera Hospitality and HSMAI MEA will offer sales, marketing and revenue staff four professional certifications including CHSL, CHDM, CRME and CHBA, supported by expert-led review courses.