Last month, Facebook CEO Mark Zuckerberg announced a new feature called Messaging Rooms. Messenger Room, as the executive explained, will allow Facebook, Messenger, Instagram, WhatsApp and Portal users to interact with each other without leaving their respective platforms.
Shortly after the announcement, the Messenger Room feature was spotted in the beta version of the WhatsApp app on iOS phones first.
Now, WhatsApp has clarified in an update on its FAQ page how iPhone users will be able to use Messenger Rooms in WhatsApp.
So, here is a step by step guide about
How to use Messenger Room on WhatsApp for the operating system:
Step 1: Open WhatsApp then tap on the + tab next to the chat box and choose ROOM 
Step 2: Click on the Create Room option. Alternatively, you can also open an individual chat or group chat > Tap the room option in the individual chat or the group call icon to then create a room in group chats.
Step 3: Now you will see a prompt from WhatsApp to follow on Messenger. Then click on the open option.
Step 4: In the next step, click on the Try option.
Step 5: Now tap on the Create Room option and name it.
Step 6: Next, click on Send Link on WhatsApp to reopen the WhatsApp application.
Step 7: Click on the Open option.
Step 8: Now select the contacts or group chats you want to share the room link with. Click the Next button.
Step 9: Now you will see the link in the message body area, write your message and press “Send” button 
It should be noted that the Messenger Rooms feature for WhatsApp is still in the testing phase. It will take some time for the company to deploy the feature in its main application on all systems and phones.
