PayPal errors when customers try to purchase

[nathanzachary]

Hello all,

I'm experiencing a very annoying problem with PayPal lately. It used to happen once in a while, but now it is happening about 40% of the time. A customer will get all the way through the cart/checkout process, and will then get a PayPal error saying "Invoice already paid," when it hasn't been paid for. Obviously, the payment doesn't come through, but the customers are getting agitated. Can someone please offer me some help in remedying this issue?

Thank you preemptively.

[nathanzachary]

My fault, I am still using osCMax 2.0.15. Could a mod please move this request into the appropriate subforum? Thanks.

[michael_s]

This is a setting in your paypal account that needs to be changed to resolve.

1. Login to paypal.com
2. In the Profile Menu click on More Options
3. Click on Payment Receiving Preferences
4. Set Block Accidental Payments to No

This is a workaround for now and will allow checkout to complete properly. I have scheduled some time to try to reproduce and fix if I can locate the problem. Apparently your site is sending the same invoice ID for multiple orders.

You can help me find the problem by specifying exactly which paypal module you are using (tell me the name of the module from your admin panel).

[nathanzachary]

The module is:

PayPal Website Payments Standard

If you need any further information from me, please let me know. Thank you very much for the help; I greatly appreciate it!

[Shortbus]

Sorry to resurrect and old thread, but did this ever get resolved? I'm in the process of converting my osC2.2ms2 site to osCMax. I'm working on the payment modules now (still in the sandbox), but PayPal Website Payments Standard still gives the same error message as above even after doing step #4 in the above post. Getting the paypal module converted over has been the hardest part (been working on it since Monday and not sure how much longer I can take). Desperate for a resolution or an idea.

[niallb]

I still get this occassionally and Im using v2.0.25

[michael_s]

Shortbus, don't use the website payments standard module if you are having issues with it, use the Paypal IPN module as it is the most stable of the bunch and has had the most debugging done on it. It is listed as Credit/Debit Card (via PayPal) in the admin panel.

[Shortbus]

Thanks, that's the one I have been using.

[michael_s]

Thanks, that's the one I have been using.

That isn't what you said in your post and I can only make recommendations based on what you tell me you are using.

The posted workaround will resolve this issue for you:
PayPal errors when customers try to purchase