Help with paypal express: ipn_main_handler.php

[IceDragon]

We have just received an email from PayPal saying that that IPNs are failing and in fact they have disabled them.

When I looked at the PayPal Express settings in the shop it was saying that ipn_main_handler.php should be in the root directory instead of in the shop where it actually resides.

The shop isn't live yet but tested successfully with paypal express in May, so must have had the correct address in then. The errors are more likely to be coming from a donations button that has been on the site for a few years.

Can zencart 1.50 co-exist with paypal payment buttons ?

[DrByte]

Can zencart 1.50 co-exist with paypal payment buttons ?

Yes, but the Instant Payment Notification URL you specified in your PayPal's account profile settings must point to a link that actually responds properly.
If it doesn't respond, then PayPal will send you the notice you're reporting.

[IceDragon]

I've rechecked the link to the root directory and it does work correctly

So all I need now is to discover is how to turn off IPN on Pay Pals own buttons ...............

[IceDragon]

I should have said that I retested the link and it worked fine. Everything between Zen Cart and Pay Pal is working.

just the dratted button that currently is being used live is sending notifications to the Zen Cart url and generating errors.

[DrByte]

Under normal circumstances Zen Cart will properly respond to IPN notices sent by PayPal buttons.

You'll need to find out what exactly PayPal is encountering when trying to send the IPNs. You may be able to see stuff in your PayPal account's IPN History screen, or contact PayPal at www.paypal.com/mts to find out what exactly their servers are encountering when those specific notices are sent. Armed with that information then you can sort out what's happening on your site.

Further, turn on your store's PayPal debug logging: http://www.zen-cart.com/showthread.p...Logging-PayPal and post the log file content related to failed notices for those button-based transactions. (Don't need, or want, to see stuff from your store's transactions)

[IceDragon]

I've set it to log and told it to resend one of the failed notifications. The logs folder is writable but nothing has appeared there.

According to Pay Pals page on the error the IPN message should give a clue to the problem so I compared one of the ones with an error to the test one I did earlier. Different layouts but the zen cart one finishes with &ipn_track_id=xxxxxxx while on the failed one it is very near the top.

No log had appeared yet.

[IceDragon]

PayPal say

Currently your IPN is failing due to it's response of an HTTP 404 error where PayPal needs a 200 OK response

which is logical since the url isn't where the file is but is where the module says it should be .............