So if it is healthcare...they use credentialing vendor services, which are outsourced. You submit documents to the vendor, and they check the box that says you're all clear. As a rep, they require me to show proof of annual flu shot. I submit one from year's ago, it gets rejected. I send it a few more times, and eventually the lazy pawn behind a desk just clicks approved instead. Has worked for me for the past 3 years. May work for some.