Even when handled, Respond to webhook can't be connected when a From Trigger exists

Questions
1

Describe the problem/error/question

Hey all,

My workflow has three triggers:

  • Form
  • Chat
  • Webhook

I have two specific issues, the one I’ll talk about in this post is about the Respond to Webhook node not being able to be connected to a workflow that contains a Form Trigger.

What is the error message (if any)?

Problem in node ‘On form submission‘
The “Respond to Webhook” node is not supported in workflows initiated by the “n8n Form Trigger”.

Please share your workflow

This is a test workflow, replicating the issue.

  1. When the From Trigger was executed, then it ends on Form Ending
  2. When the Webhook Trigger was executed, then it ends on Respond to Webhook

However, if Respond to Webhook is connected to the workflow and the Form Trigger is executed, the workflow won’t run until the Respond to Webhook node is disconnected from the flow.

Share the output returned by the last node

Information on your n8n setup

  • n8n version: 1.113.3
  • Database (default: SQLite): default
  • n8n EXECUTIONS_PROCESS setting (default: own, main): default
  • Running n8n via (Docker, npm, n8n cloud, desktop app): n8n cloud
  • Operating system: Windows 11
1 Like
2

Hi @Mario_Orquera

n8n currently enforces this rule:
A workflow that is started by the Form Trigger is not allowed to execute a Respond to Webhook node.

Thats why it works as you described.

3

I can see that, but I’ remain unsure if it’s a feature or a bug. For flexibility’s sake, it shouldn’t be a feature.

4

Just enough shameful bump.