To be able to calculate US taxes correctly using an external system, you need several tax jurisdiction codes. You need, at least, the tax jurisdiction codes for the ship-to location (is determined from the business partner for the ship-to role) and the ship-from location are required.

There are two alternatives for determining the tax jurisdiction code for the ship-from location.

• Determination of delivering location from APO (if an APO connection is active). In this case, you must enter a valid tax jurisdiction code in the address for the APO location. The delivering country and region are copied over from APO.
• From the sales organization (if there is no APO connection). No tax jurisdiction code can be maintained in the address for the sales organization. Each organizational unit, however, has an assigned business partner (organizational unit role) that is created automatically when creating the organizational unit. The tax jurisdiction code can be detemrined in the address for this assigned business partner, if the address data from the organizational unit permits unique determination (at least the country, region, postal code and location are required).

Control of the above procedure is carried out using the item category. The choice of ATP profile (Available to Promise) decides whether APO should be called up.

You must also enter a legal organization (company code) with the external system. This information is required for determining tax exemption licenses in the external system. As there is no ‘legal organization’ in the CRM data model, the information must be available in a user exit. This user exit must be implemented in the ‘Pricing’ module. You can find more notes there.