: Ensure your Direct Message settings are set to allow messages from "Everyone" or "Friends" in your Privacy settings.
If "18521.mp4" is a video you want to share with someone via text/DM on TikTok:
: While viewing a video, you can tap the Share button (arrow) and select a friend from your contact list to send it as a message.
: Standard text messages typically limit video files to 3.5 MB .
: For larger files, it is often better to upload the video to a service like Dropbox or Google Drive and share the text link instead. Direct Messaging on TikTok
Are you looking to text from a video, or are you trying to add captions to a file you already have? How To Text People or Send Messages On TikTok
: Ensure your Direct Message settings are set to allow messages from "Everyone" or "Friends" in your Privacy settings.
If "18521.mp4" is a video you want to share with someone via text/DM on TikTok:
: While viewing a video, you can tap the Share button (arrow) and select a friend from your contact list to send it as a message.
: Standard text messages typically limit video files to 3.5 MB .
: For larger files, it is often better to upload the video to a service like Dropbox or Google Drive and share the text link instead. Direct Messaging on TikTok
Are you looking to text from a video, or are you trying to add captions to a file you already have? How To Text People or Send Messages On TikTok