Reply To: Free Product Coupon to ignore other Individual Use Coupons

[Soft79]

This requires a developer to do some custom programming using the following filters:

woocommerce_apply_individual_use_coupon (must return an array with already applied coupons that may be kept)
woocommerce_apply_with_individual_use_coupon (must return a boolean whether a coupon can be applied while there are individual use coupons in the cart)