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siteprotectionunit-update.md

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title Update siteProtectionUnit
description Update the properties of a siteProtectionUnit object.
author abbhadauria
ms.reviewer haputta
ms.localizationpriority medium
ms.subservice m365-backup-storage
doc_type apiPageType
ms.date 03/04/2026

Update siteProtectionUnit

Namespace: microsoft.graph

[!INCLUDE beta-disclaimer]

Update the properties of a siteProtectionUnit object.

Note

This API is currently available only through the Microsoft Graph PowerShell SDK.

[!INCLUDE national-cloud-support]

Permissions

Choose the permission or permissions marked as least privileged for this API. Use a higher privileged permission or permissions only if your app requires it. For details about delegated and application permissions, see Permission types. To learn more about these permissions, see the permissions reference.

[!INCLUDE permissions-table]

HTTP request

PATCH /backupRestore/siteProtectionUnits/{siteProtectionUnitId}

Request headers

Name Description
Authorization Bearer {token}. Required. Learn more about authentication and authorization.
Content-Type application/json. Required.

Request body

This API supports updates only to the billingPolicyId property, and only for protection units removed from backup policies (policyId is an empty string "" or null).

In the request body, provide a JSON representation of the following property.

Property Type Description
billingPolicyId String Optional. The unique identifier of the billing policy assigned to the protection unit. You can update this property only when policyId is null or an empty string ("").

Note: If policyId has a value, the protection unit is attached to a protection policy and billingPolicyId can't be updated.

Response

If successful, this method returns a 200 OK response code and an updated siteProtectionUnit object in the response body.

For a list of possible error responses, see Backup Storage API error responses.

Examples

Example 1: Update the billing policy when the protection unit isn't attached to a protection policy

The following example shows how to update the billingPolicyId property when the protection unit isn't attached to a protection policy.

Request

The following example shows a request.

PATCH https://graph.microsoft.com/beta/backupRestore/siteProtectionUnits/ZTIxZDVmN2ItZWQ3My00M2NkLWE4YzMtYmUyOGYzYTYyNWIzXzE=
Content-Type: application/json

{
  "billingPolicyId": "fa3d95b5-2878-4de7-94f5-157f4b7607aa"
}

Response

The following example shows the response.

HTTP/1.1 200 OK
Content-Type: application/json

{
  "@odata.type": "#microsoft.graph.siteProtectionUnit",
  "id": "ZTIxZDVmN2ItZWQ3My00M2NkLWE4YzMtYmUyOGYzYTYyNWIzXzE=",
  "siteId": "4205A6B4-B210-4739-B5E0-FA8FC9213719",
  "siteName": "Contoso M365Backup",
  "siteWebUrl": "https://contoso.sharepoint.com/sites/ContosoM365Backup941",
  "policyId": "",
  "billingPolicyId": "fa3d95b5-2878-4de7-94f5-157f4b7607aa",
  "createdDateTime": "2026-02-02T09:21:52.594531Z",
  "createdBy": {
    "user": {
      "identity": "6b4a7195-59a5-4a31-ab17-1e73973d992e"
    }
  },
  "status": "unprotected",
  "protectionSources": "none",
  "lastModifiedDateTime": "2026-02-23T07:23:09.6805688Z",
  "lastModifiedBy": {
    "user": {
      "identity": "6b4a7195-59a5-4a31-ab17-1e73973d992e"
    }
  },
  "offboardRequestedDateTime": "0001-01-01T00:00:00Z"
}

Example 2: Update the billing policy when the protection unit is attached to a protection policy

The following example shows the response you get if you try to update the billingPolicyId property when the protection unit is attached to a protection policy.

Request

The following example shows a request.

PATCH https://graph.microsoft.com/beta/backupRestore/siteProtectionUnits/NmFmNTQ2NTUtNTkwYS00YWU2LThkMDQtODRmNDI0OGMwZjU0XzE=
Content-Type: application/json

{
  "billingPolicyId": "f65f082d-a073-4451-9a3b-2355956f2cd7"
}

Response

The following example shows the response.

HTTP/1.1 403 Operation Not Allowed
Content-Type: application/json

{
  "@odata.type": "#microsoft.graph.publicError",
  "code": "OperationNotAllowed",
  "message": "Only protection units removed from backup policies are allowed for this API.",
  "target": "billingPolicyId",
  "details": [],
  "innerError": {
    "@odata.type": "#microsoft.graph.publicError",
    "code": "OperationNotAllowed",
    "message": "The protection unit is attached to a backup policy.",
    "target": "policyId",
    "details": [],
    "innerError": null
  }
}

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