We use Vertex (Q series ) for tax calculations.
But what we found recently is that the address entered in SAP (and valid in USPS) does not match all the time with Vertex Address.
Whenever it does not match, no jurisdiction is returned. Order fails.
If a user is entering the order, he does know what addresses (city, zipcode) are available in Vertex.
Did anyone else face the same issue? This can't be just us
Eg - Millstone, NJ is a valid city in USPS but does not exist in Vertex. There is no way a customer/user will know what is in vertex. Even if he does, he does not want the order to be shipped to some other city.