You can test your custom IPN Listener by:
- logging into your Paypal Developer account.
- Select ‘Applications’ from tab menu
- Then select ‘IPN Simulator’ from left panel menu.
- Enter your IPN Handler URL
- Select Transaction Type:
Once you select the Transaction Type, the page will refresh with more form values relevant to your selected Transaction Type. Majority of the ‘Test Data’ is already filled. However, you can change any values you like to test.
Click on the Send IPN button to simulate the transaction, which will result in one or more IPN notifications being sent to your IPN Handler URL depending upon the Transaction Type.