To become a member of ACCA and qualify as a professional accountant, your must complete the Practical expereince Requirements (PER). There are three components to the PER: 1) completing 36 months' employment in an accounting or finance-related role or roles 2) achieving five Essentials and at least four Technical performance objectives to the satisfaction of your practical experience supervisorrecording and 3) reporting your PER progress through the onlineMy Experiencerecord. Since you are already a CA, your articleship expereince should siffuce all points especially towards point 1 and 2. If you are missing out on any of objectives in point 2, you can still gain that though work expereince.