This study investigates the effectiveness of the Blended Learning (BL) Method for training professionals from engineering and various other fields in the Kingdom of Bahrain to achieve the Certified Project Officer (CPO) certification as a long-term collaboration by Bahrain Society of Engineers and the Centre of Project Innovation, USA. The primary goal of the research was to evaluate the effectiveness and acceptance of the Blended Learning tool in Bahrain. Specifically, the study aimed to address the research gap by analyzing attitudes towards acceptance and managing the challenges to meet the training challenges &objectives for gaining international certification as planned within a 30-hour, 6-day training period.Surveys were conducted with 24 professional participants from various business organizations who attended training organized by the Centre of Training for the Bahrain Society of Engineers. The training program integrates classroom lessons, group exercises, and computer-based lessons and quizzes to prepare participants for the CPO certification. Results from surveys conducted across three training batches indicated high levels of trainee satisfaction and positive outcomes to achieve the international certification within the given time frame. The findings suggest that the Blended Learning Method is wellreceived and was effective for project management training, especially within the context of the CPO certification program in Bahrain per given deadlines and challenges to receive the certification during the training period.