> For the complete documentation index, see [llms.txt](https://docs.greennode.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.greennode.ai/vserver/compute-hcm03-1a/operation-and-maintenance/activate-the-service.md).

# Activate the O\&M service

## Prerequisites

* A VNG Cloud account with access to the vServer Portal.
* At least one running VM in region **HCM-03** or **HAN-01**.
* Permission to use the O\&M feature (if you use a sub-account through IAM, the corresponding permissions must be granted).

## Activation (one time only)

Before creating your first Scheduled Task you need to activate the service. The process is fully automatic and takes only a few seconds.

<figure><img src="/files/eNauhJHMBI5Zu69w9mkH" alt=""><figcaption><p>O&#x26;M service activation flow</p></figcaption></figure>

1. Go to **Operation & Maintenance (O\&M)** in the vServer Portal.
2. Click **Activate**. The system creates a dedicated Service Account for your account and attaches a least-privilege operations policy.
3. Once the status turns **ACTIVE**, you can start creating tasks.

## Activation statuses

| Status             | Meaning                                                                        | What you should do                                |
| ------------------ | ------------------------------------------------------------------------------ | ------------------------------------------------- |
| **NOT\_ACTIVATED** | The service has not been activated yet                                         | Click **Activate**                                |
| **ACTIVE**         | The service is ready                                                           | Use it normally                                   |
| **SA\_BROKEN**     | The Service Account is broken (for example deleted or its permissions changed) | Click **Re-activate** to let the system repair it |

{% hint style="info" %}
**Note:** While the service is not activated, or the Service Account is broken, you can still view your task list and execution history. Only create/update/delete/run operations are temporarily blocked until activation succeeds.
{% endhint %}