"Specify input schema" is not available

I’m not getting the “Specify input Schema” option

##I’m very new at this. I’m following a youtube tutorial on how to build a blog with telegram.

(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)

Share the output returned by the last node

Information on your n8n setup

That does seem unexpected. You should have the option to define the input data like this:

Are you starting from a new Workflow?

Does it let you change the dropdown option at all?

Have you tried deleting it and starting a fresh workflow?

Yes I’m starting a new workflow. Here’s the video I’m watching (https://www.youtube.com/watch?v=5-KpPU518gI) and around the 34:27 mark is where I’m off.

I’m super new at this so if you can help explain it to a very beginner that would be great! Thanks in advance!

In this case, it should be fine to select the option Accept all data.

Let us know if that solves the issue or if you need more help.

Yea it’s not giving me that “Specify Input Schema” option. It’s also not giving me this whole option where I can Generate From JSON Example.

Ok, in the second workflow for the starting node, When Executed by Another Workflow, if you select the option Define using JSON example, does it show the JSON Example input field.

You should set it like this:

This is the text to copy and paste:

{
  "html": "a string",
  "title": "a string"
}

Now you should be able to go back to the tool node and specify the input schema.

See how you get on with that.

Hi it did get me the workflow inputs but it did not have the Specify Input Schema. if I input all the “html” coding/wording from the youtube tutorial in there would it work? Here’s the screenshot and error that I’m getting.

{

“errorMessage”: “The sub-workflow (hQg8K76MbddrtQsW) cannot be called by this workflow”,
“errorDetails”: {},
“n8nDetails”: {
“time”: “2/23/2025, 5:47:49 PM”,
“n8nVersion”: “1.79.3 (Cloud)”,
“binaryDataMode”: “filesystem”,
“cause”: {
“description”: “The sub-workflow you’re trying to execute limits which workflows it can be called by. You will need John Tr to update the sub-workflow (hQg8K76MbddrtQsW) settings to allow this workflow to call it.”
}
}
}

Hi @jets21,

the video you mentioned is running on an old version of the sub-workflow tool. By now, you can define the data you expect in your sub-workflow so that you can directly use it in your tool. In your case you can define your sub-workflow like this:

In the main workflow, you can call the tool simply like this:

Hope this helps?

It’s still not giving me the result I’m looking for.


Those two screens are different from this. I can’t input Html coding in either.

Is there a way I can reinstall the old version of n8n that has the features and functions like in the Youtube video?

Hey @jets21,

your inputs look fine now. Instead of “Your raw HTML” you want to input the actual HTML value there.
Your error is a different one here though (which is also in older versions). It seems like your sub-workflow tool is not set up to be called by other workflows. To fix this, go to your sub-workflow, move to the settings at the top right of the screen and change the “This workflow can be called by” option

Hi here’s the solution from the creator of that workflow.AI Foundations

Hope this help everyone that ran into the same problem.

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