Digits Plugin Customization.

Introduction

OTP-based login systems are becoming increasingly popular because they provide a faster and more secure login experience compared to traditional username-password methods.

In WordPress, the Digits plugin is widely used for OTP login via mobile number. However, by default, it only collects basic information and lacks customization options.

In many real-world projects, you may need to collect additional user data such as name, title, or other profile details during registration.

In this guide, we will learn how to customize the Digits plugin to extend its functionality.

Why Customize OTP Login?

Default OTP login systems are limited in functionality.

Common requirements:

• Collect full name during signup
• Add dropdown fields (Mr, Ms, etc.)
• Store additional user data
• Display data in user profile

These features are essential for building a professional user system.

Default Limitations of Digits Plugin

By default, Digits plugin provides:

• Mobile number login
• Basic registration flow

Limitations:

• No custom fields
• Limited UI control
• No advanced user data handling

Step 1: Extend the Registration Form

The first step is to modify the registration form to include additional fields.

Example fields:

• Full Name
• Title (Mr, Mrs, Ms)

This can be done by customizing the form template or using hooks provided by the plugin.

Step 2: Validate Custom Fields

Validation is important to ensure correct data is submitted.

• Make required fields mandatory
• Validate input format
• Show proper error messages

This improves user experience and data quality.

Step 3: Save User Data

Once the form is submitted, store the custom data in WordPress user meta.

Logic:

• Capture form input
• Use WordPress functions to save user meta

Step 4: Display Data in Profile

After saving data, display it in:

• User profile page
• Frontend dashboards

This ensures data is accessible and useful.

Step 5: Improve UI/UX

A good user experience is essential for higher conversions.

• Clean form layout
• Proper spacing
• Mobile-friendly design

This improves usability and engagement.

Real Case Study

In one project, I customized the Digits plugin to collect user title and full name during OTP registration.

Results:

• Improved user data quality
• Better personalization
• Professional user management system

This small customization significantly improved the overall system.

Common Mistakes to Avoid

• Not validating user inputs
• Not saving data correctly
• Breaking plugin updates with direct edits
• Ignoring mobile UI

Advanced Tips

• Use hooks instead of modifying core plugin files
• Add dropdown and custom field types
• Integrate with CRM or APIs
• Use AJAX for smoother experience

Also check my ACF Dynamic User Data Guide to manage and display user data effectively.

Conclusion

Customizing OTP login in WordPress allows you to build a more powerful and flexible user system. By extending the Digits plugin, you can collect meaningful data and improve user experience.

With proper implementation, you can create a complete user management system tailored to your needs.