Bug? Error 10413 when using the attribute : One time charge

[get bucked]

I'm getting this one now too - have tried to pay with a credit card, on paypal express checkout, with only products and "perweightunit" shipping set to a single price assigned to each item. its the first time I've tried to use a credit card...

[get bucked]

And by the way I'm not using the one time charge bit...

[get bucked]

Hmmm... so far it only seems to happen using paypal express with a credit card.... didn't get the message when using my [personal] paypal account. something to do with using the same account as the seller perhaps? or just a paypal express glitch...?

[get bucked]

Ok by total assyness, I seem to have alleviated the problem, but found another!
I noticed that the sub total wasn't showing in checkout, only the shipping and the total, so found in admin>modules>order total that "ot_subtotal" was not installed, hence was not showing at checkout, hence the message about the mismatched order totals :)

Hope that helps!

Now I have "merchant country unsupported" when i use my own visa card...!!! grrr...

[Nedward]

Hi, I'm having the same problem, just after installing a one time charge.
I used to have my extra charge in the attribute just as price +£2.50 but then when customers bought 2 of the same item, they were charged the extra bit twice which wasn't correct, then I spotted the "one time" charge and I was really chuffed that this was a feature of zen cart.
Then the errors and phone calls started and my life became very complicated.

I wrote to paypal and they say

I see you are receiving API error 10413 frequently. This is because the totals of the cart item amounts do not match order amounts. For example on one transaction we received:

amt "9.19"
itemamt "9.99"
handlingamt "2.50"

Amt should reflect itemamt + handlingamt.

You will need to look into the cart's configuration or contact the cart provider to determine why this is happening.

##########___end paypal email------------


any assistance would be much appreciated.

regards
Steven