Prerequisites
Before you complete the tasks in this section:
- You must set up legal next numbers using the Work With GST Self Invoice Legal Next Number (P75I847). See Setting Up Legal Next Numbers for the Self-Invoice for more information. 
- You must run voucher match for purchase orders on which reverse charge is applicable. 
- Calculate reverse charges for advance payment using the Work With Reverse Charge on Advance Payment P2P program (P75I838)