Coupon usage in checkout

-- url of the page with the problem -- : divecaboverde.com
-- HikaShop version -- : 4.7.2
-- Joomla version -- : 4.2.9

Hi,
today I bought the HikaSerial add-on to do the following:
When a customer buy a 5 or 10 dive package, he gets 5 or 10 or just one with the correct valued coupon (but ideally 1 coupon for each dive of the package).

Then, when selecting a date (s)he wants to dive, (s)he pays with the coupon.

I put a payment link in my JEvents/RSVP to send the selection to the cart, this works great, the dives are automatically added to a category called events (not displayed in the shop) with a description (date) and a transaction id.

Till there, all good.

I added the ‘coupon field’ in my checkout, but when trying to use a generated coupon, the checkout gives me an ‘The coupon you entered is not valid’ error.

I cannot, or did not find, how to allow these coupons only on the ‘event’ category’ only, allowing it to a particular product will not function.

Any help or idea?

Thanks
Xavier

Hi,
I found how to (not very explicit in the documentation), now the Coupon codes are generated, usable for one or more categories, all good

But, when applied, the cart doesn't update to the new value. Ex:
Amount in the cart before coupon 300
Applying 1 coupon value 50
Cart still displays 300, but continues the right amount to paypal (in this case 250)

Merci
Xavier

Hi,
I'll send you all the needed login infos per contact form

Merci
Xavier

Hi,
I changed, as you suggested the 'add coupon' to the very beginning, and changed the cart display as well. Now it's all good.

Un grand merci
Xavier