: 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
If you want to send an MP4 file as a text (SMS/MMS) or through a messaging app: 18521mp4
If you are looking for general instructions on how to manage text related to MP4 files or TikTok videos, here are the most common ways to handle text in those contexts: : For larger files, it is often better