Adding One-Time Promo Codes Manually

To add one-time promo codes manually:

1. In the Billing control panel, go to Products > Marketing.
2. Depending on for what object you are going to generate promo codes, stay on the Promotions tab or switch to the Discounts tab.
3. In the list of existing promotions (or discounts), click the name of the necessary promotion (or discount). The General settings are displayed.
4. Switch to the One-Time Promo Codes tab and click Add New Promotion (or Add New Discount).
5. Enter promo codes, each separated by a new line, into the Promo Codes field.
6. Click Add. The promo codes are added to the selected promotion (or discount).