What is what does it mean this person is unavailable on messenger?

When someone is unavailable on Messenger, it can mean several things:

• The person has deactivated their Facebook account: This is a permanent action where the person chooses to no longer use Facebook or Messenger. All their information is hidden, and you won't be able to contact them.

• The person has deleted their Facebook account: Like deactivation, this removes their presence, but it is permanent after a certain period.

• The person has blocked you: If someone blocks you, you will no longer be able to see their profile, send them messages, or contact them in any way on Messenger. This is designed to prevent any interaction between the two of you.

• There is a technical issue with Facebook or Messenger: Occasionally, technical problems on Facebook's end can cause users to appear unavailable. This is usually temporary.

• The person hasn't used Messenger recently: If a user doesn't actively use Messenger, their status may not always reflect their real-time availability.