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Almost there

 
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cowdogman2



Joined: 08 Mar 2018
Posts: 13

PostPosted: Fri Mar 16, 2018 9:59 pm    Post subject: Almost there Reply with quote

I seem to have it almost all in place. Live testing works 100%.

I am still having a postback issue in the PayPal sandbox and I'd like to resolve it so that I can have a testing bed going forward.

When I input a sale in the sandbox between two of my sandbox entities, an IPN is sent to my server but the verification postback fails with the below quoted error. IPN.NET issues a Payment Error email with xml attachment and also an Error Processing Payment email to the sandbox customer. I have both "Allow Test Posts" and "Verify PayPal Posts" checked in the Configure IPN.NET Server dialog.

I suspect it is a security protocol issue of some sort, but don't know how to address it.


Quote:
VerifyPost 0.0297118 0.001447
Postback Address: https://www.sandbox.paypal.com/cgi-bin/webscr 0.0299469 0.000235
PostBackData: cmd = _notify-validate&mc_gross=570.00&protection_eligibility=Eligible&address_status=confirmed&item_number1=SLP&item_number2=SLP5&payer_id=2BRJSXRTQHDX8&address_street=1+Main+St&payment_date=11%3a46%3a56+Mar+16%2c+2018+PDT&payment_status=Completed&charset=windows-1252&address_zip=95131&first_name=Ben&mc_fee=16.83&address_country_code=US&address_name=Ben+Johnson&notify_version=3.9&custom=&payer_status=unverified&business=brad%40lavastrings.com&address_country=United+States&num_cart_items=2&mc_handling1=0.00&mc_handling2=0.00&address_city=San+Jose&verify_sign=AM.mJXg9D4CJVmLuVr1CY6gzeeHIAq1jHdiydzl13R3QcjVbN82vZPO4&payer_email=sales%40studioclerk.com&txn_id=5R637612CU6201221&payment_type=instant&last_name=Johnson&address_state=CA&item_name1=Sample+Licensed+Product&receiver_email=brad%40lavastrings.com&item_name2=Sample+Licensed+Product+-+5+License+Pack&payment_fee=16.83&quantity1=1&quantity2=1&receiver_id=C7YHMBA3BPGAA&txn_type=cart&mc_gross_1=120.00&mc_currency=USD&mc_gross_2=450.00&residence_country=US&test_ipn=1&transaction_subject=&payment_gross=570.00&ipn_track_id=dc7a4b6316eb5 51.4819147 51.451968
Payment not verified by PayPal. PayPal response: The underlying connection was closed: An unexpected error occurred on a send. 51.4819559 0.000041
ProcessPayment
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Infralution



Joined: 28 Feb 2005
Posts: 5027

PostPosted: Sun Mar 18, 2018 2:01 am    Post subject: Reply with quote

I've not seen that error before. If your live PayPal is working then I think it is most likely an issue with the PayPal Sandbox - which some users have been reporting has been fairly flaky. You could probably work around this by just turning off the "Verify PayPal Posts" option while testing in the Sandbox. Once you have everything up and running however you will probably find that you won't bother with the Sandbox. It's useful for some initial testing when first setting up your website - but after that you can generally just test using the TestTool and then go live.
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