From the SAP Business One Main Menu, choose  Inventory Price Lists Special Prices Discount Groups .

In the Discount Groups window, select any of the defined discount groups.

Choose the Copy To button, and then select the discount group type you want to copy to.

According to the selected type, either the Choose Business Partner window or the Choose Customer/Vendor Group window opens.

In the Choose Business Partner window, specify business partners by entering a number range.

In the Choose Customer/Vendor Group window, select one or more customer/vendor groups by selecting the checkbox next to the group name.

Choose the OK button.

In the Discount Groups window, choose the Update button.