IMMEDIATE COMPLETION OF BEGINNING OF SCHOOL YEAR (BOSY) ENROLMENT UPDATING IN THE LEARNER INFORMATION SYSTEM (LIS) Posted on October 22, 2021 by DepEd Mandaluyong Leave a comment 21-10-50. IMMEDIATE COMPLETION OF BEGINNING OF SCHOOL YEAR (BOSY) ENROLMENT UPDATING IN THE LEARNER INFORMATION SYSTEM (LIS) Memorandum Unnumbered
