Many people use WhatsApp, so it's not surprising that there's a business version. I haven't tried it, but it's an accessible version, according to my friend.
In my search for more features for the messenger, I found YoWhatsApp Download. It's a great app with several useful features. You can also use Sticker Maker to create unique stickers on WhatsApp instead of the standard emoticons and emoticons or other uploaded images and stickers. While WhatsApp is useful, it doesn't contain all the features you need. With the above extensions and many others, you can use the features you need to improve your productivity.