Tracking user switching

Hi,

In woocommerce I would like to record when our sales managers switch to customers, I have some custom tracking set up in a seperate pluing with it’s own table.

I’m looking at user-switching.php, switch_to_user function specifically, I can’t see any suitable apply_filter in there which I could easily hook into to do this though. I could replace the switch_to_user function in my functions.php I guess – would this be the best way to achieve this and I could then add my custom tracking code that way?

Many thanks