When affiliates apply to your program, you can give them the option of choosing a coupon code to use in their promotions. If you accept the affiliate into your network, then the coupon code will be available to them as a conversion trigger, unique to them.
You can create this option by adding custom form fields to your registration page:
Navigate to Channels>Affiliate Registration Page, and click on Custom Form Fields link at left.
Click Add Custom Field.
In the pop-up, set Field mapping to Auto Conversion Trigger (Coupon).
This allows the field to be registered as a coupon code conversion trigger.Enter a field label and type, and indicate if the field should be required.
Click Create.
To see what your registration page looks like with the new field, go to Dashboard > Affiliate Signup. Affiliates will now be able to let you know what coupon code they'd like to use when promoting for you! If an affiliate asks for a coupon code that is already taken by another affiliate, then they'll see an error message telling them to ask for a different coupon code
Please Keep In Mind: You'll need to ensure that coupon codes that your affiliates ask for get created in your online store. Check out our guide on How to Create Coupon Codes
Note: If you set Auto Approve Affiliates to YES for an offer, then coupon codes will automatically be created for new affiliates upon registration.