Hi there: Judging from what the journal entry is saying, it is as simple as recording the amount as an adjustment. Because the payroll module sets up the WCB Payable for your employees on each paycheque, the debit to WCB Payable for employees is correct because the WCB Expense is also recorded at the time of each paycheque.
Since the Subcontractor amount owing is something you must figure out, it has not been set up in WCB Payable (unless you do it yourself by journal entry). Since the Adjustment option is there for you to enter the amount owing, then the journal entry debiting WCB Expense would be correct. Rita Deering