Forget being invasive
We know that you want to promote your product or service, but you cannot send your promotions daily, since you could lead your prospect to silence your chat or even block you. Use a calendar and share valuable or even emotional information.
You can send much more than text
Remember that WhatsApp allows us to send much more than text, so send images, PDFs and even videos. When it comes to winning over your clients, creativity should have no limits.
Install WhatsApp Business
This is the most important point, install WhatsApp Business, you can use it from your cell phone or in its web version, it is free and allows you to include company profiles and other valuable data that will help you provide technical support to your customers and send them Important notifications, as explained by the aforementioned official WhatsApp site.