: The unique identifier for that day. WA stands for WhatsApp, and 0020 means it was the 21st audio file (starting from 0000) processed on that specific date. Where to Find and Download It
If you are looking for this specific file, it is likely stored in one of two places on your device:
The name follows a strict structure used by the WhatsApp media management system:
: The date the file was saved or received, formatted as YYYYMMDD (July 9, 2020).
: Found in your internal storage at /WhatsApp/Media/WhatsApp Audio/ . Sent Files : Found at /WhatsApp/Media/WhatsApp Audio/Sent/ . Why Is It Named This Way?
: Indicates this is an audio file (rather than a voice note, which typically starts with "PTT").
To keep the original filename when sending audio in the future, you can send the file as a instead of an Audio file.