Hi and welcome ccastellon :)
I'm not sure where your current location is but usually they would ask for a tax ID and a business license. Please note that not all suppliers will require you to have a tax ID and/or business license.
Here are guides that may help - (Kindly select the one that corresponds with your location)
Link hidden: Login to view
If you need further assistance please don't hesitate to let us know.
Cheers!