What is WhatsApp Business API: The Complete Guide (2023)

Do you want a direct and personalized channel to connect with customers? Are you considering using the WhatsApp Business API to improve your business’s communication and customer experience? Whether you run a small or medium-sized organization (SME) or a large corporation, the WhatsApp Business API provides various sophisticated tools to meet your marketing, sales, and customer support objectives.

It streamlines processes by automating activities and providing necessary functionality. This blog discusses how it may assist SMEs, and significant organizations in achieving their goals by revolutionizing business communication.

What is WhatsApp Business API?

The WhatsApp API serves medium to big enterprises that wish to use WhatsApp with many users. One of its benefits is the ability to automate corporate and consumer communications through automatic responses, chatbots, and interactive messaging. WhatsApp Business API also enables businesses to establish personalized communication flows based on their clients’ needs and boost consumer engagement using WhatsApp.

What is WhatsApp Business API

Trengo – The ultimate bsp for whatsapp business api

To enjoy all that API has to offer, you need a Business Service Provider and Trengo gets our approval as a top tool for using your WhatsApp API. The platform provides a single platform for your CRM integration requirements. It streamlines all processes, so you don’t have to worry about dealing with significant customer requests. WhatsApp remains an effective and optimum tool for buyer communication, making it ideal for support and sales use cases.

Trengo allows you to execute customized marketing and engage customers quickly. You get all channels in one place, which means no more hopping between platforms and providing poor customer service.

WhatsApp Business API

You get a free trial period during which you may access the features and evaluate what this tool can achieve for your business. To begin, get your free demo here!

What is the difference between WhatsApp Business App and WhatsApp API?

WhatsApp Business App is a free program that allows individuals and small companies to create a WhatsApp Business Account, interact with clients, and generate sales. However, the main issue here is that you cannot utilize WhatsApp Business to communicate with a broad audience due to several drawbacks, including:

  • WhatsApp has a 256-user broadcast limit.
  • The Broadcast will only be received by people who have added you to their contacts.
  • There is no way to track analytics.
  • Incorporating a WhatsApp Chatbot to automate customer support is impossible.
  • Not able to send messages with Clickable Buttons or Quick Replies.

To overcome these constraints, you may utilize the WhatsApp Business API for numerous users.

Here’s how the WhatsApp API stacks up against WhatsApp Business

What is the price of the WhatsApp API?

Pricing for the WhatsApp API may vary since a company’s country code determines the price. On the other hand, the fee Facebook has set for WhatsApp Business is determined by who initiates the discussion.

  • User-Initiated Conversation

The customer begins the conversation, and the business has 24 hours to respond to the customer’s concerns.

  • Business-initiated conversation

Outside of the 24-hour service hours, the company contacts the consumer. In this situation, the corporation will require a message template to deliver the message. Businesses and customers can exchange communications without extra messages during this period.

Who is eligible to apply for WhatsApp Business API?

To apply for WhatsApp Business API, you must meet two prerequisites:

  • You must have a Business Website/Business email ID to access the WhatsApp API.
  • Make sure your official business name appears in the footer of your website.
  •  A New Telephone Number
  • You must have an active phone number that is not associated with any of the WhatsApp accounts. You can also use an outdated phone number, but you must deactivate the WhatsApp App/Account currently active on it.

Once you get the approval for the WhatsApp API, you can send messages to up to 50 individuals at once.

Use Cases of WhatsApp Business API

The WhatsApp Business API has various possible applications. However, you cannot fully utilize it without the assistance of a service provider. To build the WhatsApp API ecosystem and have the platform ready for use, you need a trustworthy solution partner like Trengo.

Now let’s take a look at some use cases of WhatsApp Business API.

Improved open rate

WhatsApp Business API guarantees that businesses may send promotional messages with a 99% open rate, ensuring customer interaction and engagement.

Improved open rate

Help Customers on their favorite Platform

WhatsApp Business API enables companies to assist straight from their customers’ phones on their preferred platform.

Personalized Recommendation to Improve Conversion

Businesses may use the WhatsApp API to offer personalized suggestions based on consumer behavior, enhancing ROI and conversion rates.

24/7 Customer Support

AI-powered WhatsApp Business API Chatbots provide 24-hour customer service, allowing personalized, intuitive interactions, figuring out inquiries, and quick responses. Live agents tackle challenging questions and increase the overall effectiveness of customer service.

Rapid Feedback

Businesses may utilize the WhatsApp Business API to obtain rapid consumer feedback after addressing a customer issue. Companies can benefit from this by improving their goods and services.

Advantages of a WhatsApp Business API

Now lets take a dive into the advantages of WhatsApp Business API

Serve your consumer immediately

The WhatsApp Business API enables enterprises to service customers with a single WhatsApp number. Customers can contact businesses without remembering several phone numbers or email addresses. This feature improves business accessibility to customers and streamlines communication.

Be There for customers

The WhatsApp Business API enables businesses to provide chatbot service to their clients around the clock. This feature allows companies to meet their customers’ demands at any time of day, regardless of business hours. Businesses may boost customer happiness and loyalty with constant availability.

Furthermore, businesses can also use chatbots to answer commonly requested inquiries in real time, provide personalized suggestions, and even execute transactions.

A virtual assistant

A WhatsApp chatbot is like a virtual assistant that helps businesses handle client inquiries more effectively. You can train the chatbot to rapidly answer FAQs, give assistance with purchasing, etc. 

analytical reporting

The WhatsApp Business API includes an analytical reporting dashboard that delivers vital insights into enterprises’ customer care operations. Businesses may use the dashboard to track response times, client engagement and discover areas for development.

Build loyalty and trust

Businesses use WhatsApp Business API to increase client loyalty and trust. WhatsApp’s fast and personalized communication channels can assist businesses in building strong ties with their clients. Brands may improve their reputation and create trust with their consumers by offering exceptional customer service and immediately responding to customer inquiries.

Build loyalty and trust

keeps WhatsApp user data private

The WhatsApp Business API uses end-to-end encryption to keep all user data private. This implies that all discussions and information shared between companies and their consumers are secure hence third parties cannot view them.

WhatsApp Business API: Components

Here is a look at the components of WhatsApp API.


Customers may learn more about your company by seeing your WhatsApp Business Profile.

Businesses may also optimize their company profile by changing their cover photo, description (about the service), business address, email, and website.

Messaging Tier

The phone number level of your WhatsApp API account will influence your message-sending limits.

The WhatsApp Business API has five tiers of phone numbers:

  • Unverified Trial Tier: Message 50 unique contacts in 24 hours and own up to two numbers.
  • Tier 1: Send messages to 1000 users in 24 hours and own up to 25 numbers.
  • T2: Send messages to 10,000 users in 24 hours.
  • T3: Send messages to 100,000 people in 24 hours.
  • T4: Send messages to an unlimited number of users throughout 24 hours.

Message-sending limitations only apply to messages initiated by the company

After registering their phone number, the business will begin in the Unverified Trial Tier or Tier 1, depending on the BSP. You must verify your Facebook Business Account to go from the Unverified Trial Tier to the next level.

Businesses on T1, T2, and T3 will be elevated to the next tier when they meet the current level’s message limit as long as they have a high-quality rating and are not flagged.

Phone Number Status and Quality Ratings

Phone number quality ratings and statuses show customer satisfaction with the quality of your company interactions.

The WhatsApp API supports five phone number statuses:

Pending: The status of the trade policy check before its completion.

Offline: The status changes when a company fails a Commerce policy check or cancels its WhatsApp API account.

Connected: The default state.

Flagged: When the quality rating falls too Low, the status changes. If it rises to Medium or High in the next seven days, the status will be reset to Connected. Otherwise, WhatsApp will restore your phone number’s Connected status but impose a lesser message limit.

Restricted: When a company achieves its message limit despite its bad reputation.

Several elements influence the quality rating, including the number of blocks by customers, the frequency of sending communications (notification messages or promotions), and reaction time. There are three phone number quality ratings:

  • High (green)
  • Medium (yellow)
  • Low (red)

To prevent getting blocked and to maintain a high-quality rating, send relevant messages to your contacts.

If your device is prohibited, your phone number’s quality rating will decrease to Moderate or Low. Changes in quality rating may have an impact on the status of your phone number.

WhatsApp Business API – FAQs

Is WhatsApp Business API free?

WhatsApp API is not free. You must pay WhatsApp Conversation costs for Business and User Initiated Conversations (which vary by country) and platform charges for using a WhatsApp Business API-based platform such as Trengo.

How can I access the WhatsApp Business API?

To access the WhatsApp Business API, you must connect with a WhatsApp Partner, such as Trengo.

Can I use the WhatsApp App and the WhatsApp API on a single phone number?

Nope. The number registered on WhatsApp Apps cannot be the same as on WhatsApp Business API. In addition, if a phone number is already registered on WhatsApp Apps, you must remove that WhatsApp Account to register for WhatsApp Business API.

Can I use WhatsApp Business API to send automated messages?

By linking your CRM/Business Software with platforms like Trengo, you can automate WhatsApp messages to your customers, such as greeting messages, order/payment notifications, empty cart alerts, app drop-off alerts, and more.

Which is preferable, WhatsApp Business or WhatsApp Business API?

WhatsApp Business is ideal for small enterprises and individual owners, whereas WhatsApp API caters to medium to big businesses with high message volumes.

Can we use the WhatsApp Business API for integrating chatbots?

You can integrate WhatsApp Chatbots with a WhatsApp API-based platform such as Trengo. The method is quite simple, and you may do it yourself by reading the Chatbot Tutorial on our website. If you need help, you can request their staff construct it!


The WhatsApp Business API is a crucial tool in the evolving environment of digital communication, enabling businesses to form meaningful relationships and offer seamless consumer experiences. As we’ve seen in this thorough guide, the API’s features, ranging from automated messaging to integration options, provide a fantastic opportunity for organizations to prosper in today’s market.

With the WhatsApp Business API, businesses can streamline their communication processes and engage with their audience more effectively, ultimately leading to growth and success.


Carol, a seasoned specialist in social media customer service, is on a mission to share valuable insights. She blends storytelling and data-driven content to offer practical advice on enhancing customer interactions. Join Carol in navigating the dynamic world of digital customer service.

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