> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://appointyhelpdesk.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# How to troubleshoot IPN notifications from PayPal?

Paypal sends IPN (Instant Payment Notification) to Appointy after each payment with the status of the Payment. If you notice successful payment in Paypal but not in Appointy then please follow the steps mentioned below to troubleshoot.

1. Log in to your PayPal account.

2. Click on the gear-like Settings icon on the top-right and go to 'Account Settings'.

![](https://storage.crisp.chat/users/helpdesk/website/e090bd25ec95d800/7f49cfb0-88e5-42e7-83e1-d91902_2kora.png)

3. Search 'Instant payment notification' in the search bar on the left and click on the 'Update' link appearing against it on the right.

![](https://storage.crisp.chat/users/helpdesk/website/e4b877f49a40f000/4598cc16-78c8-4897-942c-7bf947_1wzj79m.png)

4. Click on 'Edit Settings'.

![](https://storage.crisp.chat/users/helpdesk/website/a76a89a68f50680/3557953c-60f5-4b4a-b871-27f431_14l1lbc.png)

5. In the Notification URL, enter 'http://www.appointy.com/PaymentProccessor/PayPalIPN.aspx' and select 'Receive IPN Messages (Enabled)' and then click on the 'Save' button.

![](https://storage.crisp.chat/users/helpdesk/website/482065fa61dff400/f0594380-d811-404e-a499-0e141e_1ej5r78.png)