PayPal - How to set the Paypal IPN URL

When integrating QLM with Paypal, you must configure the Paypal IPN to connect to the QLM License Server. The IPN can either be configured globally and apply to all transactions or it can be configured per button.

Global IPN Configuration

To configure the Paypal IPN to point to the QLM License Server.

• Log in to your PayPal account
• In the Settings menu, select Account Settings
• In the Notifications section, locate the Instant payment notifications section
• Click Update
• Click Choose IPN Settings
• In the Notification URL field, enter (update the URL to point to your QLM License Server): https://qlm3.net/qlmdemo/qlmLicenseServer/qlmpaypalipn.aspx
• Check the option Receive IPN messages (Enabled)
• Click Save

Per Button IPN Configuration

• Log in to your PayPal account
• In the Settings menu, select Account Settings
• In the Website payments section, locate the PayPal button section
• Click Update
• Click Buy Now 
• Configure the Buy Now options as needed
• Expand Step3: Customize advanced features
• Check the Add advanced variables checkbox (see the screenshot below)
• Add the following in the advanced section (update the URL to point to your QLM License Server) and enter a new line containing the following 
  • address_override=1 
  • notify_url=https://qlm3.net/qlmdemo/qlmLicenseServer/qlmpaypalipn.aspx
• Click Create Button