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HomeHomeIssues and Supp...Issues and Supp...MiscellaneousMiscellaneousDiscount not applying in Paypal when price drops to zero but shipping appliesDiscount not applying in Paypal when price drops to zero but shipping applies
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10/24/2016 12:58 AM
 
TestMyTeen
No Ranking

Joined: 10/23/2016
Posts: 3
I have a situation where users have a coupon so that the product is free and only shipping and handling apply (like the late night infomercials do).
I made a coupon that can only by applied to a certain product and set the discount amount to the same cost as the product.
When I test the coupon everything looks good in cart viper (the product is discounted correctly and shipping and handling is what the total price shows).
However when I checkout in paypal the full price of the product plus shipping are charged.  The cart still shows that the order amount was for shipping costs only.
Also the Order fulfillment backend of cart viper does not show that the order ever happened.
When I set the coupon discount amount to equal 1 cent less that the total product price everything works correctly end to end (both paypal and the cart work fine).
In your guide the example for coupon code show that my exact scenario should work...
 
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10/24/2016 4:51 PM
Accepted Answer 
Nigel - Cart Viper Developer
4th Level Poster


Joined: 7/27/2010
Posts: 789
Hi,

Its not a Cart Viper issue but a limitation of the Paypal discount system, when we send the transaction to Paypal we send the line items and then pass the discount amount in the field "discount_amount_cart", this then allows Paypal to calculate the amount to charge and show the subtotal, discount, shipping etc.

However Paypal have the business rule that the discount has to be less than the total of the items in your cart (not including shipping, etc), see below documentation:

https://developer.paypal.com/webapps/developer/docs/classic/paypal-payments-standard/integration-guide/Appx_websitestandard_htmlvariables/#id08A6HH0D0TA

The reason the order does not appear in the store admin is once Paypal let us know they have taken payment we perform a number of security checks on the notification they send us. Only when it passes all these do we send confirmation emails, decrease stock levels and make the order appear in the store admin. One check is that the amount they have taken matches our order total, in your case this will not be true as they are taking the full amount not the discounted rate we know it should be.

The way you have setup the coupon is correct it just wont work the way you want due to Paypal internal logic, what I would suggest is using one of the many payment gateways we support that we just send the amount to charge the user such as Authorize.net, Stripe etc and it should work as you wanted. The full list of payment gateways we support are listed on the below page:

http://www.cartviper.com/features/featureslist

Regards
Nigel.
 
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10/25/2016 2:08 AM
 
TestMyTeen
No Ranking

Joined: 10/23/2016
Posts: 3
Thank you for the quick and thorough response.  I'll look into the other providers. 
 
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