If you dismiss this notification by accident, you can return to any requests by going to your group settings, then "Approve Member Requests" on iOS or "Member Requests" on Android.
You can customize the color, greeting message, button display, alignment, etc.
You'll see a Notifications in Messenger option.
S ome of these apps include GIPHY, Memes, Spotify, Apple Music, and The Weather Channel.
What this does is automatically pop up your messenger when they visit your page.
To start a private and encrypted conversation, just open a conversation thread and then tap on the name of your friend at the top.
Next, specify the time period for which you want to mute the notifications.
One just needs to just turn off the Secret Conversations mode to exit and resume with normal messenger chats and activities.