How to set up outbound messages in Salesforce?

Follow these steps to set up an outbound message:
1. Go to Setup -> Enter Outbound in Quick find box -> Click Outbound messages.
2. Click the ‘New Outbound Message’ button. Select the Object for which Outbound must be sent and click the ‘Next’ button.
3. Enter the Endpoint URL generated in the PutsReq. PutsReq URL must be generated before you create the outbound message.
4. Select the fields that must be sent in the outbound and click ‘Save’.