To send a text, tap Message on a user’s profile.
It works this way on the desktop site and in the mobile app.
Below are alternative directions that work a little differently between the app and the website.

Tap thenew chatbutton at the top.
Then, select a conversation to send a new message and view previous DMs with that user.
If you’re on the desktop site, hover the mouse over that button and selectSend to friends.

If you’re viewing it in full-screen mode, choose the send button.
Select a user from the pop-up menu, or search for them if you don’t see them listed.
you’re free to send the same message to multiple people by selecting them from this screen.

Doing this creates separate conversations, not a group message.
Optionally add text to the message, and then selectSend.
Can You Message Anyone on TikTok?

No, not every TikTok user can private message you, nor can you message all other users.
There are default restrictions built-in to prevent this, plus any user can lock down their private messages.
It feels like a feature afforded to select profiles only.
They will not get a notification you’ve blocked them.
Something else you’re free to do is edit your direct message privacy tweaks.
Doing this lets you define who can send you DMs.
Here’s how to do that from the app:
TapProfileat the bottom.
Select thethree-linemenu at the top.
Go toPrivacy>Direct messages.
SelectSuggested friends,Friends, orNo oneto restrict who can message you on TikTok.
If you chooseEveryone, then even non-friends can contact you.
Exit the prompt to save the changes.
FAQ
If you could’t send messages on TikTok, there are a number offixes you could try.
Check your online grid connection, update the app, and check that your phone number is verified.
You or the user could have messages turned off in the configs.
If you still have problems, use a site like Downdetector to see if TikTok is down.
Deleting a message only removes it from your gadget.
TikTok supports read receipts if the toggle is turned on in the Direct messages parameters.
That’s just one way to inferif someone has viewed your TikTok.