Additional Process Information 
Open items are required for most of these transactions. In order to ensure that there are open items available in the system, you should enter some simple invoices in Accounts Receivable or Accounts Payable before starting the closing program.
To carry out this process, you have to enter the following documents:
If other open items already exist in the system, they will also be evaluated and possibly transferred if they meet the selection criteria.
For the customer invoice, the system automatically defaults tax code AN (16%) for company code 1000 and tax code S1 for company code 3000.
For the vendor invoice, the system automatically defaults tax code VN for company code 1000 and tax code I1 for company code 3000.
In addition, the screen variants (transaction variants) are entered with business area and cost center. The relevant columns here are those for the G/L account, posting key, document currency amount, cost center, or business area.