How do I send a message on Facebook?
Who can I send messages to on Facebook?
What happens when I message someone on Facebook?
How do I know if a friend has seen a message I sent on Facebook?
How do I add a file to my message on Facebook?
How do I send a photo, emoji or sticker to someone on Facebook?
How do I delete sticker packs for my Facebook messages?
Can I retrieve deleted messages on Facebook?
How many people can I message at once on Facebook?
How do I chat with more than one friend at once on Facebook?
How do I leave a group conversation on Facebook?
Messaging Pages, Events and Groups
How do I send a message to my Facebook event guest list?
How do I send a private message to a Facebook Page?