automation // n8nLAB

n8n Webhook — Stable Error Envelope

Return predictable success/error response shapes so callers can distinguish accepted input from workflow failure.

n8nwebhookapierror handling

Trust & provenanceLAB

Evidence tierLABOfficial sources0Other sources0Last verified2026-10-05

Evidence tier describes my hands-on relationship with the content. Official sources describe platform contracts/documentation. Production observations should not automatically be treated as official limits.

EvidenceLAB

Difficultyfoundation

Verified2026-10-05

Use when

A public form or application calls n8n through an HTTP webhook.

// Code node output example
return [{
  json: {
    ok: false,
    code: 'VALIDATION_ERROR',
    message: 'Missing required field',
    requestId: $execution.id
  }
}];

Why it works

Stable response contracts keep frontend behavior independent from internal node errors.

Operational notes

Do not leak credentials, stack traces or internal node data to public callers.

Use a separate internal log path for detailed error context.

n8n Webhook — Stable Error Envelope

Keep following the context.