Transportation zone determination

Hi,

We base freight upon a transportation zone/shipping point/currency combination and for that I needed to created a new transportation zone "A".

I expected that I needed to update the customer masterdata as well, but during testing the transportation zone and related freight charges were determined anyway.

So, the outcome is ok (I need transportation zone A), but the question is how is the transportation zone determined if nothing is entered in a CMIR or in the customer masterdata.

• I checked for Customer material info records, but none are available.
• Both sold-to an ship-to contain no transportation zone.
• When adding a random transportation zone (B/C or D) in the customer, the related freight is determined (as expected)

Many thanks for your assistance.

Peter