Batch update alerts

Applies to:

• Microsoft Defender for Endpoint Plan 1
• Microsoft Defender for Endpoint Plan 2

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Note

If you are a US Government customer, please use the URIs listed in Microsoft Defender for Endpoint for US Government customers.

Tip

For better performance, you can use server closer to your geo location:

• us.api.security.microsoft.com
• eu.api.security.microsoft.com
• uk.api.security.microsoft.com
• au.api.security.microsoft.com
• swa.api.security.microsoft.com

API description

Updates properties of a batch of existing Alerts.

Submission of comment is available with or without updating properties.

Updatable properties are: status, determination, classification and assignedTo.

Limitations

1. You can update alerts that are available in the API. For more information, see List Alerts.
2. Rate limitations for this API are 10 calls per minute and 500 calls per hour.

Permissions

One of the following permissions is required to call this API. To learn more, including how to choose permissions, see Use Microsoft Defender for Endpoint APIs

Permission type	Permission	Permission display name
Application	Alert.ReadWrite.All	'Read and write all alerts'
Delegated (work or school account)	Alert.ReadWrite	'Read and write alerts'

Note

When obtaining a token using user credentials:

• The user needs to have at least the following role permission: 'Alerts investigation'. For more information, see Create and manage roles.
• The user needs to have access to the device associated with the alert, based on device group settings. For more information, see Create and manage device groups.

Device group creation is supported in Defender for Endpoint Plan 1 and Plan 2.

HTTP request

POST /api/alerts/batchUpdate

Request headers

Name	Type	Description
Authorization	String	Bearer {token}. Required.
Content-Type	String	application/json. Required.

Request body

In the request body, supply the IDs of the alerts to be updated and the values of the relevant fields that you wish to update for these alerts.

Existing properties that aren't included in the request body will maintain their previous values or be recalculated based on changes to other property values.

For best performance you shouldn't include existing values that haven't changed.

Property	Type	Description
alertIds	List<String>	A list of the IDs of the alerts to be updated. Required
status	String	Specifies the updated status of the specified alerts. The property values are: 'New', 'InProgress' and 'Resolved'.
assignedTo	String	Owner of the specified alerts
classification	String	Specifies the specification of the specified alerts. The property values are: TruePositive, Informational, expected activity, and FalsePositive.
determination	String	Specifies the determination of the specified alerts. Possible determination values for each classification are: True positive: Multistage attack (MultiStagedAttack), Malicious user activity (MaliciousUserActivity), Compromised account (CompromisedUser) – consider changing the enum name in public api accordingly, Malware (Malware), Phishing (Phishing), Unwanted software (UnwantedSoftware), and Other (Other). Informational, expected activity: Security test (SecurityTesting), Line-of-business application (LineOfBusinessApplication), Confirmed activity (ConfirmedUserActivity) - consider changing the enum name in public api accordingly, and Other (Other). False positive: Not malicious (Clean) - consider changing the enum name in public api accordingly, Not enough data to validate (InsufficientData), and Other (Other).
comment	String	Comment to be added to the specified alerts.

Note

Around August 29, 2022, previously supported alert determination values ('Apt' and 'SecurityPersonnel') will be deprecated and no longer available via the API.

Response

If successful, this method returns 200 OK, with an empty response body.

Example

Request

Here's an example of the request.

POST https://api.securitycenter.microsoft.com/api/alerts/batchUpdate

{
    "alertIds": ["da637399794050273582_760707377", "da637399989469816469_51697947354"],
    "status": "Resolved",
    "assignedTo": "secop2@contoso.com",
    "classification": "FalsePositive",
    "determination": "Malware",
    "comment": "Resolve my alert and assign to secop2"
}

Tip

Do you want to learn more? Engage with the Microsoft Security community in our Tech Community: Microsoft Defender for Endpoint Tech Community.