Hi Sami,
First i enabled the coupon field by setting the flag in woocommerce settings – tab General. This will display the coupon field in the shopping cart.
Next fill in the coupon field with a text including some entities what should be blocked. In my case the text: <(entities should be blocked)>.
Woocommerce displays thye message: the Coupon “”<(entities should be blocked)>”” does not exist! . The entities <()> should be blocked.
Kind regards,
Jos Hamers
