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PayPal API, Instant Payment Notification (IPN), and PDT


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General IPN and PDT Questions

Learn how to use the PayPal IPN and PDT features.

  • 2,879 topics
  • 6,908 replies
Paypal Custom Field "on... - last post by Lucas777

PayPal API and Web Services

Get advanced PayPal backend programming help.

  • 631 topics
  • 592 replies
Maximum Failed Recurring Pa... - last post by _Chris_

PayPal with ASP / .Net

  • 482 topics
  • 919 replies
Sandbox Express Checkout In... - last post by Jitendra

PayPal with PHP

  • 750 topics
  • 1,365 replies
Paypal Custom Field "on... - last post by paypaldev

PayPal with Perl

  • 111 topics
  • 300 replies
Perl newbie needing IPN help - last post by angeljs

PayPal with Java

  • 85 topics
  • 108 replies
Paypal Checkout Express In-... - last post by anto0192

PayPal with ColdFusion

  • 105 topics
  • 265 replies
CFHTTP alternative? - last post by vivien9711