Rippling treats payroll errors as feature requests

tl;dr: Rippling does not ensure HSA contributions from your paycheck and deposits into the HSA actually match, leading to a situation where you may have money withheld from your paycheck that doesn’t actually get deposited into your HSA. If you use Rippling and have an HSA, you should really go audit your contributions and make sure they match the deposits into your HSA account. In my case, I was missing $400.