Aws-sdk-js: AWS.CognitoIdentityServiceProvider's adminCreateUser returns "UserNotFoundException: User does not exist."

[rsshilli]

Hello,

I'm trying to create a new user. There are currently no users at all in my user pool. I've checked in the console and programatically by calling deleteUser. I'm also super confused why a "create user" command would return "user not found". Of course the user isn't found... that's why I'm creating it. :-)

I'm using AWS SDK 2.12.0 and Node 4.6.0 on Windows 10. Here's the code I'm calling:

  var params = {
    UserPoolId: "@cognito_pool_id@",
    Username: email.replace("@", "__"),
    DesiredDeliveryMediums: ["EMAIL"],
    ForceAliasCreation: false,
    MessageAction: "RESEND",
    TemporaryPassword: tempPassword,
    UserAttributes: [
      { Name: "given_name", Value: firstName },
      { Name: "family_name", Value: lastName},
      { Name: "name", Value: firstName + " " + lastName},
      { Name: "email", Value: email},
      { Name: "custom:title", Value: "Made up title"},
      { Name: "custom:company", Value: companyName},
      { Name: "phone_number", Value: "[phone]"}
    ],
  };
  console.log("Sending params to cognito: " + JSON.stringify(params));
  var cognitoIdentityServiceProvider = new AWS.CognitoIdentityServiceProvider({region: "us-east-1"});
  cognitoIdentityServiceProvider.adminCreateUser(params, function(error, data) {
    if (error) {
      console.log("Error adding user to cognito: " + error, error.stack);
    } else {
      console.log(data);
      module.exports.addUserToDB(firstName, lastName, email, "Rockets R US", "XXXXXXXX", callback);
    }
  });

My log statement prints the following, which looks good to me. I X'd out the UserPoold. The rest is fake test data including the phone num:

Sending params to cognito: {"UserPoolId":"us-east-1_XXXXXXXXX","Username":"qdbvision-test__mailinator.com","DesiredDeliveryMediums":["EMAIL"],"ForceAliasCreation":false,"MessageAction":"RESEND","TemporaryPassword":"23x3l.023LQ","UserAttributes":[{"Name":"given_name","Value":"Ryan"},{"Name":"family_name","Value":"Rocket"},{"Name":"name","Value":"Ryan Rocket"},{"Name":"email","Value":"[email protected]"},{"Name":"custom:title","Value":"Made up title"},{"Name":"custom:company","Value":"Rockets R US"},{"Name":"phone_number","Value":"[phone]"}]}

When the error arrives, here's the output/stack trace:

Error adding user to cognito: UserNotFoundException: User does not exist. UserNotFoundException: User does not exist.
    at emitNone (events.js:72:20)
    at IncomingMessage.emit (events.js:166:7)
    at endReadableNT (_stream_readable.js:921:12)
    at nextTickCallbackWith2Args (node.js:442:9)
    at process._tickDomainCallback (node.js:397:17)

I can add a very similar user with the exact same username & email through the browser using "amazon-cognito-identity-js" on our sign-up pages. I wanted a quick way to do this on the back-end as a setup for test cases.

Any idea why I'm receiving this "UserNotFoundException"?

[jeskew]

I haven't set up a repro case for this yet, but wouldn't you expect to encounter a UserNotFoundException when the MessageAction parameter is set to RESEND? The API reference implies that the "RESEND" action should only work on existing users.

[rsshilli]

Yup. Right you are. Changing RESEND to SUPPRESS fixed it. Sorry to bother you!

[neerajaset71]

but are you getting welcome email with temp password after this change? I am not getting..what am I missing?

[jeskew]

Hi @neerajaset71,

That's the intended behavior if you set the MessageAction parameter to 'SUPRESS'. To create a new user and send a notification email, omit the MessageAction parameter.

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