I activated the display of product unit in the product card by adding a line in “other setup”
PRODUCT_USE_UNITS with a value set to 1
And added a line in the “units” dictionary
CODE: CS
Label: Case
Short Label: cs
Status is on
Now my menus (in product card and order card) display the following:
Piece
Set
… etc
Liter
unitCS
Thank you for looking into this