---
title: "Add New User"
url: https://docs.catalyst.zoho.com/en/sdk/web/v4/cloud-scale/authentication/add-new-user/
description: "This page describes the method to add a new user account to your Web application with sample code snippets."
last_updated: 2026-09-08T11:07:33Z
service: Cloud Scale
type: general
related_links:
  - name: "JavaScript SDK"
    url: /en/sdk/javascript/v1/cloudscale/authentication/add-user-to-org/
  - name: "Authentication"
    url: /en/cloud-scale/help/authentication/introduction
---

# Add New User

> **Note:** This SDK is currently in deprecation. Migrate to [JavaScript SDK](https://docs.catalyst.zoho.com/en/sdk/javascript/v1/cloudscale/authentication/add-new-user/) now.

You can add end users to your Catalyst serverless applications, fetch their details, or manage their accounts easily.
When a user has signed up to a Catalyst application, unique identification values like `ZUID` and
`userID` are created for them. The user is also assigned to an organization by Catalyst. You can
learn more about this from the [Users help
page](https://docs.catalyst.zoho.com/en/cloud-scale/help/authentication/user-management/users/introduction/).

You can use the following code snippet to register a new user to access your Catalyst application. This registration
process is handled using the `signUp()` method. The `auth` reference used in
the code snippet below is defined in the
[auth instance page](https://docs.catalyst.zoho.com/en/sdk/web/v4/cloud-scale/authentication/get-auth-instance). You must
provide the email address and last name to register of the user mandatorily while adding the user.

> **Note:** You will be able to add only 25 users in your application in the [development environment](https://docs.catalyst.zoho.com/en/deployment-and-billing/environments/development-environment). After you deploy your application to production, you can include any number of end-users in it.

The JSON objects containing the registration details of a particular user are created as shown below.

```javascript
//Enter the first name, last name, email id, platform and the redirect url
var data = {
"first_name": "Jason",
"last_name": "Chang",
"email_id": "jason.c@zylker.com",
"platform_type": "web",
"redirect_url": "https://shipmenttracking.zylker.com/"
};

```

This object is passed as an argument to the `signUp()` method. The promise returned here will be
resolved to an object whose content key contains details of the registered user.

```javascript
//Register the user by passing the object This in turn returns a promise
var auth = catalyst.auth;
var signupPromise = auth.signUp(data);
signupPromise
.then((response) => {
    console.log(response.content);
})
.catch((err) => {
    console.log(err);
});

```

A sample response that you will receive for each version is shown below:

**Web SDK**

```

    {
    zaid: "1005634498",
    user_details: {
    zuid: "1005641290",
    zaaid: "1005641456",
    org_id: "1005641456",
    status: "ACTIVE",
    is_confirmed: false,
    email_id: "p.boylie@zylker.com",
    first_name: "loki",
    last_name: "Boyle",
    created_time: "Aug 12, 2021 12:33 PM",
    modified_time: "Aug 12, 2021 12:33 PM",
    invited_time: "Aug 12, 2021 12:33 PM",
    role_details: {
    role_name: "App User",
    role_id: "10103000000115016"
    },
    user_type: "App User",
    source: "Email",
    user_id: "10103000000111308"
    },
    redirect_url: "https://aliencity-66446133.development.catalystserverless.com/app/",
    platform_type": "web",
    org_id: "10062221186"
    }

    {
    zaid: 1005634498,
    user_details: {
      zuid: 1005641433,
      zaaid: 1005641434,
      org_id: 1005641434,
      status: "ACTIVE",
      is_confirmed: false,
      email_id: "p.boyle@zylker.com",
      last_name: "Boyle",
      created_time: "Aug 12, 2021 12:27 PM",
      modified_time: "Aug 12, 2021 12:27 PM",
      invited_time: "Aug 12, 2021 12:27 PM",
    role_details: { role_name: "App User", role_id: 2305000000006024 },
      user_type: "App User",
      user_id: 2305000000007745,
      project_profiles: []
    },
    redirect_url: "https://aliencity-66446133.development.catalystserverless.com/app/",
    platform_type: "web",
    org_id: null
    }

```