Field help (SAU2)

The sales unit is initialized by the sales unit defined in the Product-customer record, if it exists, if not, it will be initialized by the sales unit of the product. Entry of another unit is possible in a selection window. The suggested units, other than those mentioned previously, are the packing units for the product and the packing units defined in the Product-customer record. When necessary, and if you have been granted the appropriate authorizations, you can access the units table.

Once the line is entered, you can no longer modify the sales unit. You must delete the line and recreate it to be able to modify the unit.