"Send contact webhook" action node

How to configure "Send contact webhook" action in Advanced Flow Builder

Written By Ray Tang (Administrator)

Updated at June 5th, 2026

Send contact webhook 

⚠️ The "Send contact webhook" action will only be available for Premium and Enterprise plan users after the Flow Builder beta period

 

The "Send contact webhook" action allows you to send data related to the contact enrolled in the flow to an external system. A prerequisite for using this node is that the external system must be able to receive incoming webhooks from SleekFlow.

 

Set up "Send contact webhook " action node

  1. Click on the Send contact webhook action node to open up its form, which will appear on the right side of the screen 

  1. The node form contains the following fields for you to configure in order for SleekFlow to send the webhook payload data of the enrolled contact to your external system:
  • Setup tab
    • URL: Input the webhook URL provided by the external system you want to send the data to
    • Header: Enable this to provide any additional data required by the webhook through the request header. Please refer to your external system's webhook documentation to see if any additional data needs to be passed through the request header of your webhook. 
    • Preview payload: You see a sample of the contact payload and its parameters that would be sent to your external system’s webhook, the payload’s data structure will be in JSON syntax