> For the complete documentation index, see [llms.txt](https://formulapro.shadebridge.com/formula-pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://formulapro.shadebridge.com/formula-pro/getting-started/authenticating-and-re-authenticating-formula-pro.md).

# Authenticating and Re-authenticating Formula Pro

You may need to authenticate (or re-authenticate) Formula Pro when using the app for the first time, or after automation ownership has been transferred. In these cases, you'll receive an error notification prompting you to re-authenticate:

<figure><img src="https://2257597643-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FPkgmBVkcjsLfReyvOKro%2Fuploads%2FngIs4rpGYFbXxXE8GVbB%2FScreenshot%202026-03-26%20at%2012.53.52.png?alt=media&amp;token=7d0b85bf-b236-4a16-8f93-064e03a14438" alt=""><figcaption></figcaption></figure>

The video below walks you through the re-authentication steps:

{% embed url="<https://vimeo.com/1078501557?fe=sh&fl=pl>" %}

If you continue to see the error after re-authenticating, please contact support at <hello@shadebridge.com>.