Silly question, I know. I changed the language on "VAT Number" to "Tax number", because i figured it was the same. However I realized that I'm not exactly sure what this is, even though I'm asking all of my vendors at sign-up for it. Is it a tax identification number? I don't think it's a tax rate since we put in the tax rates for them and they choose their tax zone which we created... please advise. Is this data necessary?
