Post by Talyrond » Wed Jan 12, 2011 11:09 pm

Hi,
From time to time we are getting double payments against a single order. This only happens with PayPal Website Payment Pro. Each payment has a different Unique Transaction ID and occurs within a few seconds of each other.
I do not understand how this can happen, the Confirm button is disabled as soon it is clicked. Refreshing the page does not cause a problem as well. The customers report that the checkout process was smooth.

Anyone have any ideas?

Many thanks

Julian

Version 1.48b
Last edited by i2Paq on Thu Jan 13, 2011 12:44 am, edited 1 time in total.
Reason: Topic moved

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Post by Talyrond » Tue Jan 18, 2011 9:46 pm

Polite bump

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Post by bobbyh » Sat Aug 20, 2011 7:28 pm

Hi,

We are also getting the same issue. Also using PayPal Website Payment Pro and version 1.5.0 of OpenCart.

I suspect people are getting impatient and clicking the payment button twice. Does anyone know how we can disable the payment button once it's clicked to stop this from happening?

Many thanks,

Bob

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Post by davidre » Tue Nov 29, 2011 8:05 am

Did you ever solve this?
I'm on Version 1.5.1.3 with Paypal payment pro (UK) and having the same issue

Thanks
Dave

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Post by Talyrond » Wed Dec 21, 2011 11:30 pm

No we have never resolved this, but it is not a double click as this is impossible because the button is disabled.
We process over 6000 transactions a year, this is a major problem!
To be honest we just have too many problems with credit card payments. Customers ringing up and telling us, that’s the ones that bother. A hosted solution is my preferred choice, and then we can forget about any problems. This is not easy though as they are expensive, a think PayPal do one now...

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Post by cerami2 » Sat Jan 07, 2012 12:11 am

i m having the same problem 1.5.1.3

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Post by JNeuhoff » Wed Feb 29, 2012 9:16 pm

Talyrond wrote:No we have never resolved this, but it is not a double click as this is impossible because the button is disabled.
We process over 6000 transactions a year, this is a major problem!
To be honest we just have too many problems with credit card payments. Customers ringing up and telling us, that’s the ones that bother. A hosted solution is my preferred choice, and then we can forget about any problems. This is not easy though as they are expensive, a think PayPal do one now...
This normally happens when an error message is generated somewhere in the send method at the catalog/controller/payment/pp_pro.php, the error gets logged in the system/logs/error.txt by the server, but the customer never gets a valid response because the json gets corrupted, all the customer sees is the endless waiting icon even if Paypal has successfully processed the payment. The user then usually tries to repeat the payment, this is how we end up with the double payment scenario.

I am not sure how to fix it, we need a more robust way to always send back a valid json array from the ajax call to send.

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Post by dweiser » Fri Jun 07, 2013 10:03 pm

Hello,

I see this thread has been around awhile, and nobody has posted a solution. It's now 2013, and I am running v1.5.4 and have the double billing issue. Has anyone overcome this obstacle? I'm curious to know if in your PayPal Website Payment Pro setup you are using SALE or AUTHORIZATION as the transaction type? I'm not code savy enough to understand json/ajax and all that, but I would appreciate any and all feedback regarding a solution or work around. This is killing us with reversing charges on a daily basis.

Thanks,
Dave

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Post by wackyracer8 » Wed Jun 12, 2013 2:47 am

I am also experiencing the same problem, is there any way to display a please wait message once the checkout button has been pressed? This may solve the issue.

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Post by dEdge » Wed Jul 17, 2013 9:21 pm

In case you're still looking for a fix ...

i2Paq referred us to a possible solution (We're having a somewhat similar double click issue in n1.5.5.1). The solution didn't work for our particular case. But, it seems to have worked for others.

Here's the link he suggested--http://forum.opencart.com/viewtopic.php?f=131&t=39022

Good luck!

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