I'm trying to use paypal ipn on my website. I am using sandbox to debug it...
I noticed sometimes I get values on payment_status like pending ...
My question is, do I get a response again from paypal ipn when this payment becomes complete?
Yes you do. That is the reason why you should implement logic in your code to cope for multiple messages relating to the same transaction.
From paypal site: https://cms.paypal.com/es/cgi-bin/?cmd=_render-content&content_ID=developer/e_howto_testing_SBOverview
"The PayPal Sandbox is a self-contained environment within which you can prototype and test PayPal features and APIs. The PayPal Sandbox is an almost identical copy of the live PayPal website"
Comparison table in the link above does mention some scenarios like Fraud detection are not enabled in sandbox.
Other than these, it should be safer to assume that features of live are same in sandbox ( like receiving IPN after status change from pending to complete etc).
Related
My question is very simple and no related to any kind of troubleshooting its just to get the information about the IPN
Lets say:
I have a system Paypal integrated activated IPN and working fine
someone tried to Price Jack a product and changed the price from 200$ to 2$
My IPN detected that and informed me about that issue (through mail as i set in my IPN).
My question is will paypal still process that payment and accept that 2$ and redirect user to my success page? or it will stop the processing the payment?
Ofcourse I have the proper handling of that and will not update the database
but question is will those 2 dollar will get processed in my paypal?
if yes is there any way to stop paypal from processing?
Note that there're multiple ways to protect your payment button code (price and other details) and also a very rare chance that an HTTPS payment request got "price-jacked" by a man-in-the-middle attack or malicious fraud activity, but still a valid question to be clarified.
In this case, the $2 will be processed just as a normal transaction to PayPal, and the asynchronous IPN will only be triggered by the event of payment completion. That's when your website backend will reconciliate and detect the "price-jack" by IPN callbacks, after the payment processing but not before.
Eventually, the transaction (of $2) that has taken place would be in sccope of fraud activity & dispute issue, and to be reported and handled by PayPal customer service
Can I test the PayPal IPN without actually making a purchase?
Is there a developer sandbox for testing the Request/Response functionality prior to actual implementation?
Basically, I have my server and would like to use the IPN feature to track my customer purchases and respond to a customer's purchase immediately. I would first like to test this out with dummy payments to ensure that the PayPal IPN and my server are communicating correctly.
Check paypal's site... the link is: https://www.paypal.com/cgi-bin/webscr?cmd=p/sell/ipn-test-outside.
Sign up for a dev account, and inside there you can create test users and specify their paypal balances, etc.
Paypal has a developer sandbox here https://developer.paypal.com/
Here you can get complete instructions:
https://developer.paypal.com/webapps/developer/docs/classic/ipn/integration-guide/IPNTesting/
We had an error in one of our scripts and even if the notify_url from PayPal was called properly, our system was not able to record it since it had errors.
Therefore we have several transactions in PayPal that were not added to our Data Base, is there any way to recreate PayPal's IPN or re-execute the notify_url for each transaction?
Thanks!
FYI: we are using Website Payments Standard.
Go into your PayPal profile, then into Instant Payment Notification Preferences. You'll see a link there for IPN history. You can see all of the IPN's that have been sent by PayPal to your system and their status. You can select IPN's from this history list resend them as needed so your system can process them accordingly.
Hi I'm setting up paypal pro for a client. I need reference transactions to work as we would have to bill the customer each month and sometimes the amount may vary.
Credit card payment
The code flow has been tested with paypal sandbox and it completely works. But with the real account we get the following error.
"This transaction cannot be processed. Please contact PayPal Customer Service."
Paypal Account Payment/Express Checkout
It did not work with paypal sandbox too owing to reference transactions not being enabled. i'm facing a similar situation with the paypal pro account too. I get the error
"Merchant not enabled for reference transactions"
We sent a request to paypal asking them to enable reference transactions. They replied back assuring they did but I still get the same error. I even tried removing the current api signature and recreating a new one. But I still get the same error.
Has anyone faced a similar situation ?
Is there any sure way of verifying if reference transactions is enabled?
If it is not, is there a way to enable it other than going through paypal's customer service (it's appalling) ?
Yes it's easy.
Just try to make a payment with a billing agreement.
Just above the confirmation message on the PayPal website it will show:
Use PayPal for future payments to XXX Inc. Payments will be made with
your default payment method unless you select a preferred payment
method. To make changes, go to My money in your Profile, and update
the My preapproved payments section.
If you don't see that message they're not enabled (or your request is wrong). But of course you can check in the sandbox to make sure the request is correct.
I cant find anny clear documentations about this.
If you use paypal express checkout, when a payment is pending what happens next?
Does paypal sends you by IPN an update if the states changes, do you have options?
Let say you do an DoExpressCheckoutPayment (with NVP)
and you get this:
&PAYMENTSTATUS=Pending
&PENDINGREASON= ECHECK //The payment is pending because it was made by an eCheck that has not yet cleared.
&REASONCODE=None
So you've made the payment and you want to wait until its cleared? What should you do next.
Update Some (external documentation) I found only sugest you could use (IPN?) to handle pending payments.
"If the Do Express Checkout Payment PENDINGREASON response is a value
other than none or completed , the payment is pending. Typically,
this means the customer has paid with aneCheck. In such a case, funds
are not guaranteed, and you should not ship or deliver items or
services until the payment has successfully completed. NOTE:
PayPal recommends that you block eChecks as a payment method if you
are unable tohandle pending state payments.To find out the status of a
pending payment, you can:
Submit an Inquiry transaction.
Check the status using PayPal Manager. See PayPal Manager online help
for details."
The paypal sandbox seems to have the option to check IPN messages for the express checkout type. The only correlation (if its ment to be used this way) between the DoExpressCheckoutPayment and the IPN seems you can use the "custom" field to keep track of a pending status. The txn_id (ipn) isn't given in DoExpressCheckoutPayment (nvp). Does any one have any experience with this?
The transaction ID is most certainly given in DoExpressCheckoutPayment, even if the PAYMENTSTATUS=Pending. A pending payment is still a transaction.
So yes, you would be notified via IPN when the transaction is completed. This typically takes a few working days.
Once it has completed, you can correlate the transaction from DoExpressCheckoutPayment to the IPN you will have received via the txn_id in the IPN.
Note: If you want to test a 'Pending' payment in the PayPal Sandbox, simply go to https://developer.paypal.com/ > Test account and click on 'Payment review' for the seller account you're testing with.
Once payment review is enabled on that seller account, any transactions it receives will be in a 'Pending' state.
Simply disable payment review to release the tranasctions afterwards.
I thought i'd add my two pence worth of thoughts to this.
I was getting a pending return status using Express Checkout via the dotNet SDK, according to the doc's and examples I should have been getting an 'approved' status.
I couldn't figure out why but it turned out to be because I was passing through a new currency, in our case 'GBP'. I had to log in as the facilitator sandbox account and decide what to do with the new currency.. convert it or setup a new balance in the currency. Once I did this, and set it as the default action, the pending return status no longer occurred.
hope that helps someone!
One thing not noted here and I haven't found anything else to confirm.. is that Paypal Express API doesn't support passing in the NOTIFYURL with the code. So you have to use the hardcoded IPN url set in your paypal account. This of course causes issues because you need a common callback file that can redirect to the individual payment options.
For example, if you are using Paypal Express AND Paypal Advanced.. Neither of those properly support a notifyurl passed in using the code. Paypal Advanced claims to, but it doesn't seem to work. So there needs to be a common IPN callback file that handles the redirection to each.
Unless someone else can confirm a working notify url for Express Checkout variable that can be passed in the code?