OneDrive Connector Setup

Provide necessary API permissions to index OneDrive files.

Index OneDrive files by creating a dedicated App Registration with the appropriate permissions.

Setup Checklist

Before starting, ensure you have:

  • Azure Global Administrator or Cloud Application Administrator role
  • Microsoft 365 E1+ licensing for OneDrive content
  • Certificate generated (see Certificate Generation Guide)
  • Active Atolio deployment

Required API Permissions

Step 1: Create App Registration

  1. Navigate to Azure Portal > App Registrations
  2. Click “New registration”
  3. Enter name: Atolio OneDrive
  4. Select “Accounts in this organizational directory only”
  5. Click “Register”

Step 2: Add API Permissions

⚠️ Important: Only add Application permissions, not Delegated permissions

  1. In your App Registration, click “API permissions” in the left menu
  2. Click “Add a permission”
  3. Select “Microsoft Graph”
  4. Click “Application permissions” (not Delegated permissions)

Add these Microsoft Graph permissions:

Identity & Directory Permissions (Required for ACL mapping)

  • Application.Read.All
  • Group.Read.All
  • GroupMember.Read.All
  • User.Read.All
  • Directory.Read.All (optional)

OneDrive Content Permissions

  • Files.Read.All
  • Reports.Read.All (required for indexing progress display)
  1. After adding all permissions, click “Grant admin consent for [your tenant name]” at the top of the API permissions page
  2. Confirm by clicking “Yes”
  3. Verify all permissions show “Granted for [your tenant name]” with green checkmarks

Step 4: Upload Certificate

  1. Click “Certificates & secrets” in the left menu
  2. Click “Upload certificate”
  3. Select your .cer file (not the .pfx file)
  4. Add description: Atolio OneDrive Authentication
  5. Click “Add”

Step 5: Collect Configuration Values

From the “Overview” page, copy:

  • Application (client) ID
  • Directory (tenant) ID

You’ll provide these, along with your base64-encoded .pfx certificate and its password, as listed in Required Configuration Values.

Required Configuration Values

Enter these values in the Atolio Admin console (v4.24 and later), or send them to Atolio Support (your Deployment Engineer).

ValueWhere to find itExample / formatSecret
Directory (tenant) IDStep 5, App Registration Overview pageGUID, e.g. 00000000-0000-0000-0000-000000000000No
Application (client) IDStep 5, App Registration Overview pageGUID, e.g. 00000000-0000-0000-0000-000000000000No
Certificate (base64-encoded .PFX)Certificate Generation, the base64 output of the .PFX file whose .cer you uploaded in Step 4Long base64 stringYes
Certificate passwordCertificate Generation, the password set on the .PFX fileYour chosen passwordYes

Keep secrets secure: Share values marked “Yes” in the Secret column only through a password-manager share (e.g. 1Password) or another secure channel agreed with Atolio Support. Never send them in plain email, chat, or support tickets.

Configuration Example

Add this block to connector-values.yaml. Replace each <PLACEHOLDER> with the matching value from the table above, and remove any line marked “Only if” that doesn’t apply.

connectors:
  microsoft:
    default:
      onedrive:
        connector: microsoft
        instance: default
        source: onedrive
        common:
          enabled: true
          identity-provider: false
        secrets:
          client_cert:
            value: "<BASE64_PFX_CERTIFICATE>"
          client_cert_password:
            value: "<PFX_PASSWORD>"
        configuration:
          tenant-id: "<DIRECTORY_TENANT_ID>"
          client-id: "<APPLICATION_CLIENT_ID>"

Resource Filtering

Limit indexing scope using resource filters. OneDrive supports multiple filter types:

User Filtering

Index OneDrive files for specific user accounts:

resources:
  user:
    included:
      - arthur.dent@example.com
      - ford.prefect@example.com
    excluded:
      - galactic-president@example.com

Group Filtering

Index OneDrive files accessible by Microsoft 365 groups:

resources:
  group:
    included:
      - engineering-group@example.com
    excluded:
      - contractors@example.com

Optional Settings Example

These optional settings go in the same block as the Configuration Example, under common: and configuration:. This example shows optional settings for OneDrive, including a sync schedule and resource filters:

common:
  cron-spec: "10 */1 * * *"
configuration:
  resources:
    user:
      included:
        - john.doe@contoso.com
        - jane.smith@contoso.com
    group:
      excluded:
        - contractors@contoso.com

Troubleshooting

ErrorCauseSolution
401 UnauthorizedMissing admin consentClick “Grant admin consent” in API permissions
403 ForbiddenWrong permission typeEnsure you added Application permissions, not Delegated
invalid_clientCertificate not found/expiredVerify certificate is uploaded and valid
OneDrive files not appearingMissing Files.Read.All permissionAdd permission and re-grant admin consent
User drives missingUser not in included listCheck user filtering configuration