> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cognigy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Once

<Frame>
  <img class="image-center" src="https://mintcdn.com/cognigy-15abf2ba/jD73u_IBHRit9B59/_assets/ai/develop/node-reference/logic/once.png?fit=max&auto=format&n=jD73u_IBHRit9B59&q=85&s=8eb494c53f81aa48fae6713eb56f2b5a" alt="Once Node configuration panel" style={{ width: 'auto' }} width="956" height="544" data-path="_assets/ai/develop/node-reference/logic/once.png" />
</Frame>

## Description

The Once Node is used to execute a part of the Flow only once during a session. It can be reset using the Reset Context Node.

The Once Node has two child Nodes: an On First Time Node and an Afterwards Node. The first time that a Once Node is activated in a session, the On First Time Node is executed. All future activations of the same Once Node execute the Afterwards Node. It is common to use a Once Node to deliver a single welcome message to a new user, and ensure that the same message is not delivered again throughout the conversation.