# ImportStacksToStackSet
<a name="API_ImportStacksToStackSet"></a>

Import existing stacks into a new StackSets. Use the stack import operation to import up to 10 stacks into a new StackSet in the same account as the source stack or in a different administrator account and Region, by specifying the stack ID of the stack you intend to import.

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

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

 ** CallAs **   
By default, `SELF` is specified. Use `SELF` for StackSets with self-managed permissions.  
+ If you are signed in to the management account, specify `SELF`.
+ For service managed StackSets, specify `DELEGATED_ADMIN`.
Type: String  
Valid Values: `SELF | DELEGATED_ADMIN`   
Required: No

 ** OperationId **   
A unique, user defined, identifier for the StackSet operation.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `[a-zA-Z0-9][-a-zA-Z0-9]*`   
Required: No

 ** OperationPreferences **   
The user-specified preferences for how CloudFormation performs a StackSet operation.  
For more information about maximum concurrent accounts and failure tolerance, see [StackSet operation options](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/stacksets-concepts.html#stackset-ops-options).  
Type: [StackSetOperationPreferences](API_StackSetOperationPreferences.md) object  
Required: No

 **OrganizationalUnitIds.member.N**   
The list of OU ID's to which the imported stacks must be mapped as deployment targets.  
Type: Array of strings  
Pattern: `^(ou-[a-z0-9]{4,32}-[a-z0-9]{8,32}|r-[a-z0-9]{4,32})$`   
Required: No

 **StackIds.member.N**   
The IDs of the stacks you are importing into a StackSet. You import up to 10 stacks per StackSet at a time.  
Specify either `StackIds` or `StackIdsUrl`.  
Type: Array of strings  
Required: No

 ** StackIdsUrl **   
The Amazon S3 URL which contains list of stack ids to be inputted.  
Specify either `StackIds` or `StackIdsUrl`.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 5120.  
Pattern: `(s3://|http(s?)://).+`   
Required: No

 ** StackSetName **   
The name of the StackSet. The name must be unique in the Region where you create your StackSet.  
Type: String  
Pattern: `[a-zA-Z][-a-zA-Z0-9]*(?::[a-zA-Z0-9]{8}-[a-zA-Z0-9]{4}-[a-zA-Z0-9]{4}-[a-zA-Z0-9]{4}-[a-zA-Z0-9]{12})?`   
Required: Yes

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

The following element is returned by the service.

 ** OperationId **   
The unique identifier for the StackSet operation.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `[a-zA-Z0-9][-a-zA-Z0-9]*` 

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

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

 ** InvalidOperation **   
The specified operation isn't valid.  
HTTP Status Code: 400

 ** LimitExceeded **   
The quota for the resource has already been reached.  
For information about resource and stack limitations, see [CloudFormation quotas](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/cloudformation-limits.html) in the * AWS CloudFormation User Guide*.  
HTTP Status Code: 400

 ** OperationIdAlreadyExists **   
The specified operation ID already exists.  
HTTP Status Code: 409

 ** OperationInProgress **   
Another operation is currently in progress for this StackSet. Only one operation can be performed for a stack set at a given time.  
HTTP Status Code: 409

 ** StackNotFound **   
The specified stack ARN doesn't exist or stack doesn't exist corresponding to the ARN in input.  
HTTP Status Code: 404

 ** StackSetNotFound **   
The specified StackSet doesn't exist.  
HTTP Status Code: 404

 ** StaleRequest **   
Another operation has been performed on this StackSet since the specified operation was performed.  
HTTP Status Code: 409

## See Also
<a name="API_ImportStacksToStackSet_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/cloudformation-2010-05-15/ImportStacksToStackSet) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/cloudformation-2010-05-15/ImportStacksToStackSet) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/cloudformation-2010-05-15/ImportStacksToStackSet) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/cloudformation-2010-05-15/ImportStacksToStackSet) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/cloudformation-2010-05-15/ImportStacksToStackSet) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/cloudformation-2010-05-15/ImportStacksToStackSet) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/cloudformation-2010-05-15/ImportStacksToStackSet) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/cloudformation-2010-05-15/ImportStacksToStackSet) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/cloudformation-2010-05-15/ImportStacksToStackSet) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/cloudformation-2010-05-15/ImportStacksToStackSet)