---
lastModified: 2026-09-10
title: "Deployment could not start"
description: "Failed to start deployment"
---
**Exact messages**

- Failed to start deployment

The deployment request failed before the UI could confirm it started. Check the latest publish status before retrying, since a failed response alone does not prove no request reached the server. **Success:** A deployment runs to completion and the public store shows the intended version. Escalate repeated start failures with the publish time and store.

[All preview, publishing, and domain errors](/en/guides/help-and-reference/error-playbook-build)