> For the complete documentation index, see [llms.txt](https://docs.guardianservice.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.guardianservice.app/overview/quick-start-indexer/existing-mgs-account-users.md).

# Existing MGS Account Users

<details>

<summary><strong>Step 1:</strong> Choose a Method to Access the Indexer</summary>

* **Option 1**: Log in through the **MGS Sidebar Menu**:
  * If you are logged into your MGS account, locate the quick link to the Indexer at the bottom of the sidebar menu and click it.
  * You will be redirected to the Indexer application.
* **Option 2**: Access the Indexer Homepage:
  * Open [indexer.guardianservice.app](https://indexer.guardianservice.app) in your browser.
  * On the "Welcome to Indexer" page, click the **"Log In Through MGS"** button.

</details>

<details>

<summary>Step 2: Authenticate Your Session</summary>

* **If You Are Already Logged Into MGS**:
  * The Indexer will detect your existing MGS session and automatically authenticate you. You’ll be directed into the Indexer without needing to log in again.
* **If You Are Not Logged Into MGS**:
  * You will be redirected to the MGS Login Screen.

</details>

<details>

<summary>Step 3: Log in Using Your Credentials</summary>

At the MGS Login Screen:

* Select the appropriate tab:
  * **"Admin"**: For Tenant Admin users.
  * **"As User"**: For Policy users.
* Enter your username and password.
* Click **"Log In"** to access the Indexer.

</details>


---

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