# WhatsTool Business Contacts guide

Managing contacts is a crucial aspect of effective communication, and WhatsTool Business provides a centralized hub for businesses to maintain and utilize customer data efficiently.

Now, let's delve into the key terms to understand contacts in more detail 

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<summary>Bulk Import contacts</summary>

Upload unlimited contacts with fields like name, address, email ID, phone number, etc. from a CSV file or api integration and CRMs

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<summary>Labels</summary>

With this feature, you can create labels for your contacts so that it becomes easy to categorize and distinguish in your CRM

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<summary>Custom fields</summary>

This is a unique identifier to assign to your customers for easy access and store any further required information in the product

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<summary>Bulk assinging</summary>

With this feature, a user can assign 100 labels, status, and customer fields in one go for contacts

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