topic Re: Magento 2 - Issues with coupon / vouchers in Integration and Testing

Magento 2 - Issues with coupon / vouchers

asurrey — Tue, 30 Jul 2019 21:43:38 GMT

when ever we've got a transaction with a coupon we get an error such as:

'code' => 'E00003',
'text' => 'The \'AnetApi/xml/v1/schema/AnetApiSchema.xsd:unitPrice\' element is invalid - The value '-78.05' is invalid according to its datatype \'Decimal\' - The MinInclusive constraint failed.',

I am guessing the extension is added an itemline for the discount, which gets refused due to it being a negative value.

This is causing a huge headache..

Re: Magento 2 - Issues with coupon / vouchers

mmcguire — Tue, 30 Jul 2019 22:41:15 GMT

The xsd is available here:

https://apitest.authorize.net/xml/v1/schema/AnetApiSchema.xsd

I'm not allowed to copy the element code here - but you can search the xsd in a browser for "unitPrice". unitPrice has a minimum of 0.00.

Re: Magento 2 - Issues with coupon / vouchers

asurrey — Wed, 31 Jul 2019 10:21:41 GMT

I'm aware of that, but I have no idea where this negative value is coming from.

All the products have positive values inside magento - the anet log doesn't log unitPrice so I can't tell which row has the negative value, or why it's negative. It's shouldn't be...

Re: Magento 2 - Issues with coupon / vouchers

asurrey — Wed, 31 Jul 2019 11:49:50 GMT

Same orders work fine with paypal and other payment methods, if we use a coupon code with this anet extension we get issues with negative values of unitPrice as stated above.

this must be related to the extenion.

Re: Magento 2 - Issues with coupon / vouchers

asurrey — Wed, 31 Jul 2019 11:50:23 GMT

We're using it on Magento 2.2.5

Re: Magento 2 - Issues with coupon / vouchers

gakon104110 — Fri, 13 Sep 2019 05:01:18 GMT

Have you found the solution for this problem yet?

Re: Magento 2 - Issues with coupon / vouchers

Renaissance — Sun, 15 Sep 2019 08:59:41 GMT

@gakon104110

I haven't seen this software or the issue, but I can tell you that the root cause is a discount being treated as if a product. UnitPrice is a property of line items. You would need the discount to be reflected somewhere other than the line items of the order. You may want to apply the discount to the line item directly, for instance instead of-

Widget $10.00

Widget discount -$1.00

Order total $9.00

You may want-

Widget (10% discount applied) $9.00

the 10% can be added to the item description. How to integrate that with your specific magento I do not know, but that is the nuts and bolts of what is supposed to happen.

Re: Magento 2 - Issues with coupon / vouchers

MiYosa51 — Mon, 16 Sep 2019 12:06:42 GMT

Searching for the same. I tried every single option, but not finding anything.

_____________________________________________________________________
Honeywell Wifi Thermostats

Re: Magento 2 - Issues with coupon / vouchers

gakon104110 — Thu, 10 Oct 2019 15:51:47 GMT

Somehow this is related to the Coupon Code with Freeshipping.

Normal coupon code works fine. I guess we have to handle the logic in Magento then, unless you have any other suggestion

Re: Magento 2 - Issues with coupon / vouchers

gakon104110 — Thu, 10 Oct 2019 18:51:27 GMT

@Renaissance

I found the problem with this... It is in the magento-module-core/gateway/request/AbstractRequestBuilder.php; function prepareLineItem where it setUnitPrice

It is calling the $item->getBasePriceInclTax() - $item->getBaseDiscountAmount(). The base discount amount is the discount amount of the whole line item.

Let's say if my item is $2.03 and it has 48 quantity in the line item. Then the total will be 97.44. But after 10% discount which is $9.74, I received the error -7.71 is invalid from Authorize Net.

It was -7.71 because it uses the BasePriceIncludeTax - BaseDiscountAmount ( 2.03 - 9.74)

Re: Magento 2 - Issues with coupon / vouchers

Renaissance — Thu, 10 Oct 2019 20:01:02 GMT

@gakon104110

Then it sounds like your solution is to pull in the item quantity or set your discount as a percent value in the calculation.