The qualifiers for messaging are just what each name states.

The variations for qualifying what you see in your WA messaging center are for messaging. Keep in mind that qualifiers are not email.

With the above combination, I am asking to see all the messages in my inbox. I see lots because I am looking at those that I have read as well as unread messages.

With this combination, I don't see any messages because I have no unread messages.

The "Outbox" follows exactly the same pattern.

I suggest that you try all three variations with both your inbox and outbox to discover which seems to be most convenient for you to see when you first open your messages.

There is one more tool connected with WA messaging.