1. First, open Sixun 10.0 software, enter the supplier management interface, select the supplier to be discounted, and enter the supplier information editing page.

2. Then, in the supplier information editing page, find the "Promotion" tab, under which you can find the "Full Discount" option.

3. Finally, check the "Full Discount" option and set the corresponding discount rate, which can be adjusted as needed. Click Save after setting to complete the adjustment of the full discount.