Create Tag from first 6 characters of filename

How can I grab a part of file name and import it to a Tag

Example:
143488_Feedback_Original_Mix.wav

Would like to covert 143488 into Beatport Track ID

I'm looking into convert, filename to Tag or Actions. Is there a way to create an action that grabs the first 6 characters of the filename and imports it to beatport track ID?

Not sure if this is the right place to ask
Thanks!!

Try an Action from type "Format Value":
$left(%_FILENAME%,6)
image

You need to adjust the target field, in this example
BEATPORTTRACKID

This worked, thanks!