Mailpark
Errors

rendering_failed

HTTP 422Template couldn't render

When it happens

The template source has an error, such as invalid blocks JSON or broken markup.

How to fix it

Preview it with POST /v1/templates/{key}/preview and fix the source.

Example response

422
{
  "error": {
    "code": "rendering_failed",
    "message": "Template couldn't render.",
    "fix": "Preview it with `POST /v1/templates/{key}/preview` and fix the source.",
    "docs": "https://docs.mailpark.io/errors/rendering_failed"
  }
}