Hi Gaby,
thanks for coming back to me. Maybe I am missing something but I can´t get it to work.
So just that you understand …
“Lagerbestand” = inventory and Anzahl = quantity (of the line Item)
the trigger condition should be correct.
I am not sure if I set up the API schedule correct:
I have the problem that I can not reference list and individual product.
if I make the parameter Line Item as a single thing.
I get an error on the side of the API side
and if I make it a list
I get the Error on the make a change to
so I got a problem with this
Action within new workflow:
- Make a change to line item’s related product
- Quantity = this product’s inventory minus line item’s quantity
“minus line item’s quantity” this is on a list and how do I reference without getting an error
had a sleepless night … . 
RG
Vik