Here we have 4 different options, each has its own pros and cons.

Option 1: Price/L with packaging

• Sales price per liter (5€)

• UoM = L

• Packaging = 3L jar; quantity = 3, UoM = L

Pros: The price per liter is displayed on the SO

Cons: You have to manually choose the right packaging when creating the SO + it allows users to choose another quantity than the jar (ex: sell 2L or 4L)

Option 2: Price/3L with no specific UoM

• Sales price is x3 the price per litre (15€)

• UoM = Units

• No packaging

Pros: The users cannot choose another quantity than the 3L jar

Cons: No display of the price per liter for the client (except with Studio)

Option 3: Price/3L with UoM

• Sales price is x3 the price per litre (15€)

• UoM = 3L

• No packaging

Pros: On the quotation, the UoM per default will be 3L but have the possibility to change it to L instead of 3L, and the price varies accordingly. This is useful if sometimes you still sell per liter. If you don’t, there is not much added value compared to option 3. 

Cons: No display of the price per liter for the client (except with Studio)

Option 4: Use of the Base Unit Price feature

• Activate the Base Unit Price (v15.2 & previous) / Product Reference Price (v15.3) feature in the Website app settings

• On your product form, add the base unit count & name (note: if you have variants, you need to configure this on the variant form)

• On the SO lines, add with Studio a related field (product > price per unit)

• Add the new field on your report

Pros: Smoothest option to have the price per liter displayed on your SO without having the possibility to sell per liter

Cons: You need to have the Website app and Studio installed

Note that the first three options are explained in more detail in the videos here:

Inventory use case - Context: https://youtu.be/qBCty_EDYu4 
Inventory use case - Solution: https://youtu.be/UBz_pU41tCc