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The charge is calculated as follows
If the product on Vision WMS has a specific discount / surcharge then this is used and we go no further, if not then step 2
Check the product group on Vision WMS for the product and check for a discount/surcharge for this group if there is not a charge then do nothing further but where there is a charge then step 3
Check whether this product on Vision WMS has the marker set “Do not apply discount” if it is set then do nothing if it is not set then apply the Product Group discount/surcharge
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