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latestOpenAPI 3.0.0Apache 2.0 License2026-07-14101465558.4 KB

Creates a new user in the specified user pool.

If MessageAction isn't set, the default is to send a welcome message via email or phone (SMS).

This action might generate an SMS text message. Starting June 1, 2021, US telecom carriers require you to register an origination phone number before you can send SMS messages to US phone numbers. If you use SMS text messages in Amazon Cognito, you must register a phone number with Amazon Pinpoint. Amazon Cognito uses the registered number automatically. Otherwise, Amazon Cognito users who must receive SMS messages might not be able to sign up, activate their accounts, or sign in.

If you have never used SMS text messages with Amazon Cognito or any other Amazon Web Service, Amazon Simple Notification Service might place your account in the SMS sandbox. In sandbox mode , you can send messages only to verified phone numbers. After you test your app while in the sandbox environment, you can move out of the sandbox and into production. For more information, see SMS message settings for Amazon Cognito user pools in the Amazon Cognito Developer Guide.

This message is based on a template that you configured in your call to create or update a user pool. This template includes your custom sign-up instructions and placeholders for user name and temporary password.

Alternatively, you can call AdminCreateUser with SUPPRESS for the MessageAction parameter, and Amazon Cognito won't send any email.

In either case, the user will be in the FORCE_CHANGE_PASSWORD state until they sign in and change their password.

AdminCreateUser requires developer credentials.

post/#X-Amz-Target=AWSCognitoIdentityProviderService.AdminCreateUser

Headers

X-Amz-Target'AWSCognitoIdentityProviderService.AdminCreateUser' required

Request body

UserPoolIdstring required

The user pool ID for the user pool where the user will be created.

Usernamestring password required

The username for the user. Must be unique within the user pool. Must be a UTF-8 string between 1 and 128 characters. After the user is created, the username can't be changed.

TemporaryPasswordstring password
<p>The user's temporary password. This password must conform to the password policy that you specified when you created the user pool.</p> <p>The temporary password is valid only once. To complete the Admin Create User flow, the user must enter the temporary password in the sign-in page, along with a new password to be used in all future sign-ins.</p> <p>This parameter isn't required. If you don't specify a value, Amazon Cognito generates one for you.</p> <p>The temporary password can only be used until the user account expiration limit that you specified when you created the user pool. To reset the account after that time limit, you must call <code>AdminCreateUser</code> again, specifying <code>"RESEND"</code> for the <code>MessageAction</code> parameter.</p>
ForceAliasCreationboolean
<p>This parameter is used only if the <code>phone_number_verified</code> or <code>email_verified</code> attribute is set to <code>True</code>. Otherwise, it is ignored.</p> <p>If this parameter is set to <code>True</code> and the phone number or email address specified in the UserAttributes parameter already exists as an alias with a different user, the API call will migrate the alias from the previous user to the newly created user. The previous user will no longer be able to log in using that alias.</p> <p>If this parameter is set to <code>False</code>, the API throws an <code>AliasExistsException</code> error if the alias already exists. The default value is <code>False</code>.</p>
MessageAction'RESEND' | 'SUPPRESS'

Set to <code>RESEND</code> to resend the invitation message to a user that already exists and reset the expiration limit on the user's account. Set to <code>SUPPRESS</code> to suppress sending the message. You can specify only one value.

DesiredDeliveryMediumsDeliveryMediumType[]

Specify <code>"EMAIL"</code> if email will be used to send the welcome message. Specify <code>"SMS"</code> if the phone number will be used. The default value is <code>"SMS"</code>. You can specify more than one value.

ClientMetadataobject
<p>A map of custom key-value pairs that you can provide as input for any custom workflows that this action triggers.</p> <p>You create custom workflows by assigning Lambda functions to user pool triggers. When you use the AdminCreateUser API action, Amazon Cognito invokes the function that is assigned to the <i>pre sign-up</i> trigger. When Amazon Cognito invokes this function, it passes a JSON payload, which the function receives as input. This payload contains a <code>clientMetadata</code> attribute, which provides the data that you assigned to the ClientMetadata parameter in your AdminCreateUser request. In your function code in Lambda, you can process the <code>clientMetadata</code> value to enhance your workflow for your specific needs.</p> <p>For more information, see <a href="https://docs.aws.amazon.com/cognito/latest/developerguide/cognito-user-identity-pools-working-with-aws-lambda-triggers.html"> Customizing user pool Workflows with Lambda Triggers</a> in the <i>Amazon Cognito Developer Guide</i>.</p> <note> <p>When you use the ClientMetadata parameter, remember that Amazon Cognito won't do the following:</p> <ul> <li> <p>Store the ClientMetadata value. This data is available only to Lambda triggers that are assigned to a user pool to support custom workflows. If your user pool configuration doesn't include triggers, the ClientMetadata parameter serves no purpose.</p> </li> <li> <p>Validate the ClientMetadata value.</p> </li> <li> <p>Encrypt the ClientMetadata value. Don't use Amazon Cognito to provide sensitive information.</p> </li> </ul> </note>

Response

Success