> For the complete documentation index, see [llms.txt](https://docs.dataloy.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dataloy.com/release-8.31/voyage-management-system/step-by-step-guides/setup/m2m-users.md).
# M2M users
### Overview
M2M (Machine-to-Machine) users enable secure API integrations between Dataloy VMS and external systems. These automated users authenticate using client credentials rather than traditional username/password combinations, allowing systems to communicate without human intervention.
### Access Requirements
To create and manage M2M users, you need one of the following roles:
* **Administrator**
* **M2MProvisioning**
### Creating an M2M User
#### Step 1: Navigate to M2M Users
From the main menu, go to **Setup** → **M2M users**
The M2M users page displays all existing machine users with their names and Client IDs.
#### Step 2: Create New User
Click the **"+"** button in the top right corner to open the creation dialog.
Insert a username and necessary security groups.
Click **Confirm** to create the user.
### Managing M2M Users
#### Viewing User Details
Click on any M2M user from the list to view and manage its configuration:
The detail view shows:
* **M2M Name**: The integration identifier
* **Client ID**: The unique identifier used for authentication
* **Client Secret**: The secure token (masked by default)
* **Security Groups**: Current permission assignments
* **Business Units**: Assigned business units
#### Sharing Credentials
Provide the following to your integration partner:
1. **Client ID**
2. **Client Secret**
3. Link to authentication documentation: [Authentication & Authorization](https://app.gitbook.com/o/-LhoT2vqihl0pYiCeolt/s/wrvQUTAwc00ji4moOvmW/dataloy-rest-api/authentication-authorization)
### Related Documentation
* [Authentication & Authorization](https://app.gitbook.com/o/-LhoT2vqihl0pYiCeolt/s/wrvQUTAwc00ji4moOvmW/dataloy-rest-api/authentication-authorization) - Technical implementation details for API authentication
* [Data Control](https://app.gitbook.com/o/-LhoT2vqihl0pYiCeolt/s/yYbNukLL3zJksOADeOR7/voyage-management-system/step-by-step-guides/setup/data-control) - Managing business unit access restrictions
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