: A sequential serial number. This indicates it was the 19th video received or sent through the app on that specific day.
If you are trying to locate or open the file on your device: Download File VID-20210604-WA0019.mp4
: These are usually saved directly to your Photos app if "Save to Camera Roll" is enabled. : A sequential serial number
: The date the file was saved or received, formatted as YYYYMMDD (June 4, 2021). formatted as YYYYMMDD (June 4