Paypal App - Payments Standard - GetTransactionDetails Error

[BrockleyJohn]

It took some low-level digging to untangle this so I thought I'd share the solution.

 

Using Paypal App on 234BS but likely to be for all app versions...

 

Error: when a customer pays by Paypal Payments Standard, the route from checkout confirmation through to Paypal, payment works fine, but on return to osc they hit an error quoting a missing file:

[physical path to catalog]/includes/apps/paypal/modules/PS/api/GetTransactionDetails.php

Since this page fails, their basket is not cleared. IPN, however, takes the order to the next status.

 

Symptom: paypal payments standard orders where the customer did return to the site have two history entries confirming the transaction; one from them and one from IPN. If all the orders only have an entry from IPN ...

 

Workaround: make sure a PDT (payment data transfer) identity token is set, and the error is avoided. There are two parts to this - in paypal account settings / website payment preferences / auto return for websites make sure that auto return is on (at the top)  and lower down, turn on Payment Data Transfer. Then copy the identity token from that page into the oscommerce paypal payments standard settings.

 

[burt]

The advice has always been;

 

signature API

Auto Return on

PDT on

[vinyltom]

hi there,

 

i am using paypal standard 3.1 (already came with my osc setup) + osCommerce Online Merchant v2.3.4 and experienced lately very similar problems as described by john (but for more than half a year ipn payments went fine and i did not change any of my settings...). auto return in my paypal profile is on and i also activated PDT (which just triggered shorter debug emails...) and i also found the token but have no field where to insert it (see picture)! any suggestions?

 

thank you very much ín advance,

 

tom

[Mikepo]

@@vinyltom, Try using the latest PayPal App, that should solve the problem

 

mike

[♥14steve14]

@@vinyltom

 

Do you have SSL on your site. There was some talk a while ago about PayPal changing its security and requiring everyone to have ssl setup on their sites among other things. Do a search for PayPal SHA-256 on this forum and in google which may help. I think it all comes into effect around this time.

[vinyltom]

thanks everybody for the advice, i will follow the ssl path first (and keep you posted)!

[BrockleyJohn]

@@vinyltom

 

Do you have SSL on your site. There was some talk a while ago about PayPal changing its security and requiring everyone to have ssl setup on their sites among other things. Do a search for PayPal SHA-256 on this forum and in google which may help. I think it all comes into effect around this time.

 

Actually it's not essential to have an SSL certificate for your own site, though it's a good idea anyway. What you absolutely do need to have are up-to-date protocols on your server so that the calls from your shop to Paypal are able to communicate at the new encryption level. What this means in practice varies a bit from one host to another, so check with your hosting company,

 

Your first step should be to use the Paypal app instead of the PP standard module - it's possible you won't need to do anything else.

 

It's likely that you've only just hit a problem now because Paypal have just withdrawn support for the old protocol. I think the date for the UK is/was sometime this week.

[vinyltom]

@@BrockleyJohn

 

thank you very much for your support!!! may i ask which paypal app you are using? i found this one => http://addons.oscommerce.com/info/9184 but it seems to me that this works only with the bootstrap version?

 

cheers,

tom

[BrockleyJohn]

@@vinyltom that's not for bootstrap but for all versions up to and including 2.3.4

[vinyltom]

@@BrockleyJohn yeah, i found out finally and managed to install it; thanx a bunch to all your help!!!

cheers,

tom

[Sam-AUST]

@@burt how is auto return URL entered in the case of having more than one online store?

[BrockleyJohn]

@@Sam-AUST if you're asking what to put in the settings in Paypal 'Return URL' field, it doesn't matter:

 

when you're using the app, it feeds the right return URL through the API when it calls Paypal and anything in this setting gets ignored.

[Sam-AUST]

@@BrockleyJohn thank you, that is handy to know!