Under the Chat section, tap on "Blocked people" (sometimes labeled "Manage blocked users").
Click "Unblock" again to confirm.
You will see a list of blocked contacts. Find the person you want to unblock. how to unblock on google chat
In the settings sidebar, look for the "Blocked people" section. (On some layouts, you may need to scroll down). Under the Chat section, tap on "Blocked people"
Tap the "Unblock" button next to their name. Under the Chat section