# 40030: Invalid publish request

Identifier: `invalid_publish_request`



A publish request was rejected because it was invalid.

## What you should do

Correct the malformed publish request and resend. The accompanying message names the specific problem, so start there.

## Why it happens

The publish request was rejected because something in it was invalid: a field, a value, or the structure of the request itself.

## What you'll see

The error is reported with code 40030 and HTTP status 400. The message varies with the cause; the generic wording is `Invalid publish request (unspecified)`.