Hello,
You have made a mistake with your free shipping calculation, when you discount the coupon in the backend. You are adding VAT (tax) on to the coupon but there should be no tax added to a coupon! They are tax free as they are amounts deducted before checkout. So the calculation is wrong. Let me show you:
FREE SHIPPING GIVEN AT 100€
Checkout amount – 100€
Coupon – 5%
New checkout amount – 95€
Your system says you need a further 5,95€ for free shipping, but in actual fact it in only 5€.
Coupons must not have tax added to them in your free shipping calculation, otherwise the calculation is wrong.
Can you provide a fix ASAP?
Thank you