If your outlet does not allow cashier staff to use sales return access. In this case, authorization is necessary so that your cashier staff can access it if any of your customers want sales returns.
The steps below will explain how to create a coupon promotion for sales returns.
I. How to generate coupon
Step 1. Click Add at Promotion Coupon tab

Step 2. Choose Type Generate
When you want to create a new coupon, you have two ways to generate the code from the coupon itself, that is :
Manual Typed : You manually input the coupon code that you want to generate

Automatic Typed : You only need to input the number of coupon codes you want to create and total digit of coupon code

Step 3 . Tab to type column select return - Authorization Code to enable Sales Return

Step 4. Set Coupon Usage Limit, Expired Date and Description then Submit

Properties
Column | Description | Data Type |
Usage Limit | Many times coupon able to use | Number |
Expired Date | you can set the date of expired coupon use | Date(dd/mm/yyyy) |
Description | optional | String |
Step 5. Coupon to Return invoice has been created

II. How to using coupon in sell menu
Step 1. Go to Sell then click Coupon button on the box

Step 2. Input Coupon Code

Step 3. Coupon Applied, Click Button Return and Input your number invoice which will be returned

Step 4. Click pay to return your invoice

Video Tutorial Promotion Coupon Return - Authorization to enable sales return
You might also like to read these articles below:
To make a promotion coupon for discount percentage, you can check this article Coupon for Discount Percentage
To make promotion coupon discount Amount or gift voucher, you can check this article Discount Amount / Gift Voucher
To make a promotion promotion coupon parked deletion, you can check this article Promotion Coupon Parked Deletion - Authorization code to enable DELETE parked order