Dear Khun Siraphat,
Sorry for late reply.
Regarding the medical fee for CEO, we had better to treat it as following procedure;
1. Make a Staff Expense in TOP for whole amount THB 4,900 as Employee Benefit – Medical : Khun Siraphat
2. Make an adjustment voucher in OEINS for deduction THB 1,680 as Receivable : Khun Off
3. Notify to Khun Au in order to deduct CEO’s salary : Khun Off