Possible to combine coupons with existing coupons

Dear,

Is it possible to set the generated coupons so that they can be combined with already existing WooCommerce coupon codes?

If a person refers a customer with their personal coupon code, the customer abandons the cart and receives the mail, the incentive coupon they receive via this plugin gives a smaller percentage of discount. Besides that it makes it impossible to track the referral source back to the referrer.

Please let me know if you need more details.
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