If you want to open your WhatsApp group for many users at the same time, you can create an invitation link and share it..
While most WhatsApp groups are meant to be kept private and only shared with close friends, some group admins allow almost anyone to join them by providing group invitation links for the public to use.
WhatsApp lets you create a shareable link that interested attendees can click to join your group right away. However, this is only possible if you are the admin of the group. Follow our step-by-step instructions or take a look at the brief instructions .
You can find such group links on various websites. In another post, you can read how to find WhatsApp groups..
Once you have found a suitable group, the process of joining via an invitation link is easy - regardless of whether you are using an Android device or an iPhone.