Unable to Recreate Exported Workflow via API
I'm trying to recreate a workflow in Vapi via the /workflow API, using a JSON export of a workflow I previously built entirely through the Vapi UI.
All I did was make a few slight changes to the prompt content — no changes to the nodes or edges structure.
However, when I try to send the exported (and slightly modified) JSON back to the /workflow API, I get this error:
{
"message": [
"Node introduction has more than one default edge"
],
"error": "Bad Request",
"statusCode": 400
}
This is confusing because:
I built the entire flow in the Vapi UI
I exported it directly from the platform (no structural changes)
I expected it to be valid for re-import, but it’s not
It seems like the UI allows creating multiple edges from a node (like introduction) without explicit condition fields, but the API does not accept that. If conditions are required, shouldn't they either:
Be included in the export, or
Be enforced in the builder itself?
What I want:
I just want to create the same workflow via API, with small changes to prompt text — not changes to the flow itself. But I can’t do that right now without manually editing conditions for edges, which I didn't even define originally.
Can you advise how I can export and reuse a workflow JSON for API creation without breaking validation?
Thanks!
All I did was make a few slight changes to the prompt content — no changes to the nodes or edges structure.
However, when I try to send the exported (and slightly modified) JSON back to the /workflow API, I get this error:
{
"message": [
"Node introduction has more than one default edge"
],
"error": "Bad Request",
"statusCode": 400
}
This is confusing because:
I built the entire flow in the Vapi UI
I exported it directly from the platform (no structural changes)
I expected it to be valid for re-import, but it’s not
It seems like the UI allows creating multiple edges from a node (like introduction) without explicit condition fields, but the API does not accept that. If conditions are required, shouldn't they either:
Be included in the export, or
Be enforced in the builder itself?
What I want:I just want to create the same workflow via API, with small changes to prompt text — not changes to the flow itself. But I can’t do that right now without manually editing conditions for edges, which I didn't even define originally.
Can you advise how I can export and reuse a workflow JSON for API creation without breaking validation?
Thanks!
