ipn

What is causing my PayPal IPN script to fail?

I am receiving the following from a PayPal IPN script. Is it evident from the following what is causing the IPN transaction to fail? If not, how can I investigate the problem further? [01/25/2010 7:49 PM] - FAIL: IPN Validation Failed. IPN $_POST variables from PayPal: mc_gross=25.00 protection_eligibility=Ineligible address_status=unco...

sending to paypal the "custom" variable on saved buttons ipn question

Hi , i have quick question, i'm setting up recurring subscriptions for paypal and i can't configure but saved buttons, (not like web_accept where i could define all the vars in the form to send...) so it results a form like this: <form action="https://www.paypal.com/cgi-bin/webscr" method="post"> <input type="hidden" name="cmd" value="_...

Python: Getting INVALID response from PayPal's Sandbox IPN, slowly going insane...

...

Simplest way to confirm payment via PayPal?

Hi - what's the best way to simply get feedback from PayPal to confirm that your customer paid? It looks as if the answer is IPN - if so, my followup question is, can I enable IPN for only specific buttons? I don't want PayPal pinging my IPN listener for purchases that don't require any kind of IPN integration. I'm all about Agile and Y...

How do I implement "cash out" on my site using PayPal?

I have a credit system set up on my site where user A can purchase a document from user B, let's say for 1 credit and user B's account gets credited, let's say for $1. User B can then "cash out" and recieve the money they earned from my (the site's) PayPal account into their PayPal account (let's assume that their email address is valid ...

anybody seen some paypal IPN Listener for ASP.NET MVC

anybody seen some paypal IPN Listener code sample / implementation for ASP.NET MVC ...

PayPal IPN & ASP.NET MVC

Hello - I have a strange problem that somebody can hopefully help me with. For a while now I have been using PayPal's IPN service for our website. In order to test it I have a port opened up on our firewall pointing to my machine. This has been working great with no problems at all. I recently upgraded to the RTM release of ASP.NET MVC...

Paypal subscriptions IPN - problem with users subscribing multiple times

I'm using paypal subscriptions and the instant payment notification (IPN) to handle subscribers on my site. For the most part it works well but there is one occasional problem I've encountered. Usually if a user cancels their subscription, I wait for the "end of term" (subscr_eot) notification before disabling access to my site. So if...

PHP PayPal IPN - Getting drop down menu

I'm using Paypal's buy it now buttons along with an IPN handler written in PHP to send me an e-mail whenever a purchase is made. The e-mail is properly being sent and is passing much of the data, but it's not capturing the drop down list for selecting a clothing item's size. Here's my button code fields: <input type="hidden" name="ite...

Dynamic price in Buy item button and hidden notify_url

Hi, I want to create PayPal button with dynamic price (depending from the item) and hidden notify url. The "amount" input is not working with saved and encrypted buttons, but if I use plain text the notify_url is visible in the code. Is the a way it to be hidden or encrypted and in the same time to have working amount input ...

Why Java servlet can't get Paypal IPN messages everytime ?

I have a Java servlet running on my notebook with Windows Vista, I set up a static IP, did port forwarding and registered for a free DDNS service, now my servlet is running, I gave the url to Paypal to send me IPN messages, I went on to it's sandbox site got to the test tools page, tried to send test messages by clicking the "Send IPN" b...

paypal ipn working but stopping at 'thank you' page.

I am using the code for controller(CODEIGNITER): function paypal_tran(){ if (empty($_GET['action'])){ $_GET['action'] = 'process';} if($this->uri->segment ( 3 )){ $action=$this->uri->segment ( 3 ); } else{ $action='process'; } $ammount=39.99; $this->lenders_model->paypal_process(...

Automated payment notification with php

I'm about to integrate automated payments into a site. To date, I've successfully used paypal for a number of projects, but these have always been sites which sell physical goods, meaning I can upload the cart contents, user pays, person physically ships goods. This site is a one off payment to enable extra features on a web app. My c...

Paypal IPN - Invalid

Hi all Im having a really hard time getting my head around this. I have a simple PayPal IPN script; // read the post from PayPal system and add 'cmd' $req = 'cmd=_notify-validate'; foreach ($post as $key => $value) { $value = urlencode(stripslashes($value)); $req .= "&$key=$value"; } // post back to PayPal system to validate $h...

Paypal IPN Handler for Cart

Hey everyone! I'm using PayPal 'buy it now' buttons on my website to sell products. Because I keep track of the number of units in stock for each product in a MySQL database and I'd like the inventory tracking in the system to be automated, I am using PayPal's Instant Payment Notification functionality to let me know when a purchase ha...

Is there a mode for different Paypal IPN?

I have a donation script at this moment where the user inputs the donation amount on the Paypal website. The problem with this is that some people donate $0.30 which equates to $0 after Paypal fees. I want to put first check the amount donated using an input on my website and then send off the amount to the Paypal website where they can ...

PayPal IPN - having trouble accessing session data?

Hello, all. I'm having issues with PayPal IPN integration where it seems I cannot get my solution to read session variables. Basically, in my shop module script, I store the customer's details as provided by PayPal to an orders table. However, I also wish to save products ordered in a transaction to a separate table linked by the order ...

PayPal IPN validation

Following is from PayPal Order Management Integration Guide: Processing the PayPal Response to Your Postback PayPal responds to your postbacks with a single word in the body of the response: VERIFIED or INVALID. When you receive a VERIFIED postback response, perform the following checks on data in the IPN: Check that the payment_...

PayPal: IPN vs PDT

Hi, I'm having some trouble choosing between PayPal's Instant Payment Notification (IPN) and Payment Data Transfer (PDT). Basically, users buy a one-off product on my site, pay on PayPal, and return to my site. I understand how IPN works but I'm now seeing that I might be able to trigger the various actions that take place after a succ...

How to deny payment via PayPal IPN?

Hello all, I need to create dynamic 'Pay Now' buttons on my site, and PayPal says the way to do this is via an HTML FORM with preset variables for the price, currency, and item of the purchase. I use PayPal IPN to notify me when a payment has complete. However, what's to stop someone from modifying the query parameters of the Pay Now ...