> For the complete documentation index, see [llms.txt](https://docs.coherent.global/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coherent.global/navigation/sign-in-and-sign-out.md).

# Sign in and sign out

## Sign in to Spark

1. Access Spark with the provided login URL. The sign-in page is constructed as `https://spark.{environment}.coherent.global/{tenant}`. A tenant is a separated part of the computing environment allocated to one client.
2. If your organization has enabled single sign-on (SSO) select the button under **Sign in**.
3. Otherwise, enter your **Email** and **Password**. This account should be assigned either by the Spark tenant administrator from your organization or provided by the Coherent team.
4. To save the sign-in details, select **Remember me**.
5. The browser will navigate to the [Home](/navigation/home.md) page.

## Sign out of Spark

1. Select the user menu (the top right corner) on the header navigation and select **Sign out**.
2. Spark will give a warning message that confirms the sign out action.

## Reset password

1. If the password has been forgotten or the password reset email has expired, visit the sign-in URL and select **Forgot password**.
2. Enter your **Email** and select **Submit***.*
3. Check your email account for an email with the subject line "Reset your password".
4. Select **Reset your password**.
5. Complete the remaining steps to create a new password.

If the email was not received:

1. Verify the correct email address was submitted.
2. Check your Custom / Junk / Spam mail folders.
3. Add `no.reply@coherent.global` to any email allowlists.
4. Request another password link from the sign-in page by selecting **Forgot password**.