# DeleteFaces
<a name="API_DeleteFaces"></a>

Deletes faces from a collection. You specify a collection ID and an array of face IDs to remove from the collection.

This operation requires permissions to perform the `rekognition:DeleteFaces` action.

## Request Syntax
<a name="API_DeleteFaces_RequestSyntax"></a>

```
{
   "CollectionId": "string",
   "FaceIds": [ "string" ]
}
```

## Request Parameters
<a name="API_DeleteFaces_RequestParameters"></a>

For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

The request accepts the following data in JSON format.

 ** [CollectionId](#API_DeleteFaces_RequestSyntax) **   <a name="rekognition-DeleteFaces-request-CollectionId"></a>
Collection from which to remove the specific faces.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 255.  
Pattern: `[a-zA-Z0-9_.\-]+`   
Required: Yes

 ** [FaceIds](#API_DeleteFaces_RequestSyntax) **   <a name="rekognition-DeleteFaces-request-FaceIds"></a>
An array of face IDs to delete.  
Type: Array of strings  
Array Members: Minimum number of 1 item. Maximum number of 4096 items.  
Pattern: `[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}`   
Required: Yes

## Response Syntax
<a name="API_DeleteFaces_ResponseSyntax"></a>

```
{
   "DeletedFaces": [ "string" ],
   "UnsuccessfulFaceDeletions": [ 
      { 
         "FaceId": "string",
         "Reasons": [ "string" ],
         "UserId": "string"
      }
   ]
}
```

## Response Elements
<a name="API_DeleteFaces_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

 ** [DeletedFaces](#API_DeleteFaces_ResponseSyntax) **   <a name="rekognition-DeleteFaces-response-DeletedFaces"></a>
An array of strings (face IDs) of the faces that were deleted.  
Type: Array of strings  
Array Members: Minimum number of 1 item. Maximum number of 4096 items.  
Pattern: `[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}` 

 ** [UnsuccessfulFaceDeletions](#API_DeleteFaces_ResponseSyntax) **   <a name="rekognition-DeleteFaces-response-UnsuccessfulFaceDeletions"></a>
An array of any faces that weren't deleted.  
Type: Array of [UnsuccessfulFaceDeletion](API_UnsuccessfulFaceDeletion.md) objects  
Array Members: Minimum number of 0 items. Maximum number of 4096 items.

## Errors
<a name="API_DeleteFaces_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** AccessDeniedException **   
You are not authorized to perform the action.  
HTTP Status Code: 400

 ** InternalServerError **   
Amazon Rekognition experienced a service issue. Try your call again.  
HTTP Status Code: 500

 ** InvalidParameterException **   
Input parameter violated a constraint. Validate your parameter before calling the API operation again.  
HTTP Status Code: 400

 ** ProvisionedThroughputExceededException **   
The number of requests exceeded your throughput limit. If you want to increase this limit, contact Amazon Rekognition.  
HTTP Status Code: 400

 ** ResourceNotFoundException **   
The resource specified in the request cannot be found.  
HTTP Status Code: 400

 ** ThrottlingException **   
Amazon Rekognition is temporarily unable to process the request. Try your call again.  
HTTP Status Code: 500

## See Also
<a name="API_DeleteFaces_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/rekognition-2016-06-27/DeleteFaces) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/rekognition-2016-06-27/DeleteFaces) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/rekognition-2016-06-27/DeleteFaces) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/rekognition-2016-06-27/DeleteFaces) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/rekognition-2016-06-27/DeleteFaces) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/rekognition-2016-06-27/DeleteFaces) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/rekognition-2016-06-27/DeleteFaces) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/rekognition-2016-06-27/DeleteFaces) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/rekognition-2016-06-27/DeleteFaces) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/rekognition-2016-06-27/DeleteFaces)