# CreateUser


For Valkey engine version 7.2 onwards and Redis OSS 6.0 to 7.1: Creates a user. For more information, see [Using Role Based Access Control (RBAC)](http://docs.aws.amazon.com/AmazonElastiCache/latest/dg/Clusters.RBAC.html).

## Request Parameters


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

 ** AccessString **   
Access permissions string used for this user.  
Type: String  
Pattern: `.*\S.*`   
Required: Yes

 ** Engine **   
The options are valkey or redis.   
Type: String  
Pattern: `[a-zA-Z]*`   
Required: Yes

 ** UserId **   
The ID of the user. This value is stored as a lowercase string.  
Type: String  
Length Constraints: Minimum length of 1.  
Pattern: `[a-zA-Z][a-zA-Z0-9\-]*`   
Required: Yes

 ** UserName **   
The username of the user.  
Type: String  
Length Constraints: Minimum length of 1.  
Required: Yes

 ** AuthenticationMode **   
Specifies how to authenticate the user.  
Type: [AuthenticationMode](API_AuthenticationMode.md) object  
Required: No

 ** NoPasswordRequired **   
Indicates a password is not required for this user.  
Type: Boolean  
Required: No

 **Passwords.member.N**   
Passwords used for this user. You can create up to two passwords for each user.  
Type: Array of strings  
Array Members: Minimum number of 1 item.  
Required: No

 **Tags.Tag.N**   
A list of tags to be added to this resource. A tag is a key-value pair. A tag key must be accompanied by a tag value, although null is accepted.  
Type: Array of [Tag](API_Tag.md) objects  
Required: No

## Response Elements


The following elements are returned by the service.

 ** AccessString **   
Access permissions string used for this user.  
Type: String

 ** ARN **   
The Amazon Resource Name (ARN) of the user.  
Type: String

 ** Authentication **   
Denotes whether the user requires a password to authenticate.  
Type: [Authentication](API_Authentication.md) object

 ** Engine **   
The options are valkey or redis.  
Type: String  
Pattern: `[a-zA-Z]*` 

 ** MinimumEngineVersion **   
The minimum engine version required, which is Redis OSS 6.0  
Type: String

 ** Status **   
Indicates the user status. Can be "active", "modifying" or "deleting".  
Type: String

 **UserGroupIds.member.N**   
Returns a list of the user group IDs the user belongs to.  
Type: Array of strings  
Length Constraints: Minimum length of 1.  
Pattern: `[a-zA-Z][a-zA-Z0-9\-]*` 

 ** UserId **   
The ID of the user.  
Type: String

 ** UserName **   
The username of the user.  
Type: String

## Errors


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

 ** DuplicateUserName **   
A user with this username already exists.  
HTTP Status Code: 400

 ** InvalidParameterCombination **   
Two or more incompatible parameters were specified.    
 ** message **   
Two or more parameters that must not be used together were used together.
HTTP Status Code: 400

 ** InvalidParameterValue **   
The value for a parameter is invalid.    
 ** message **   
A parameter value is invalid.
HTTP Status Code: 400

 ** ServiceLinkedRoleNotFoundFault **   
The specified service linked role (SLR) was not found.  
HTTP Status Code: 400

 ** TagQuotaPerResourceExceeded **   
The request cannot be processed because it would cause the resource to have more than the allowed number of tags. The maximum number of tags permitted on a resource is 50.  
HTTP Status Code: 400

 ** UserAlreadyExists **   
A user with this ID already exists.  
HTTP Status Code: 400

 ** UserQuotaExceeded **   
The quota of users has been exceeded.  
HTTP Status Code: 400

## See Also


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/elasticache-2015-02-02/CreateUser) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/elasticache-2015-02-02/CreateUser) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/elasticache-2015-02-02/CreateUser) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/elasticache-2015-02-02/CreateUser) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/elasticache-2015-02-02/CreateUser) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/elasticache-2015-02-02/CreateUser) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/elasticache-2015-02-02/CreateUser) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/elasticache-2015-02-02/CreateUser) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/elasticache-2015-02-02/CreateUser) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/elasticache-2015-02-02/CreateUser)