I need in admin section to apply coupon only on particular shipping method not discount from other shipping method. I should be able to select shipping method in admin which I want to allow for discount.
In frontend whenever customer apply that coupon, the amount should not deducted from the subtotal/ grand total, Only the particular shipping method(Which we had allowed in admin section) should be pre-selected and shown with discount applied.
Please find the sample screenshot in attachment. This is what I want to achieve.