how to disable appending code suffix

Hey there, I was wondering if its possible to disable the code suffix to the purchased coupons.

Reason being is that we want to give customers that buys a specific product a coupon code for a product on a completely different system. So the idea is that on system B we create the coupon code then copy that code over to system A (uc_coupon_purchase). So now when the customer buys product x on system A, uc_coupon_purchase sends out the email with just the base coupon code.

Thanks!