The question here is in regards to what functionality is intended by having the tax classification data on the General Data identification tab? as well as on the Customer-->Sales area-->Billing tab. My expectation is that the General data would be used to assign at the global customer level and the Customer/Sales area for a specific sales are. But this does not look to be the case. I am basing this upon the fact the data available in the different areas are not consistent. I am unable to find any explanation for this in order to ensure the correct values are used.
Thank you for the assistance!