Hi!
LIS doesn't include special stock (Projet, sales orders...) by default.
You need to implement the correction explained in this OSS note to include the project stock.
Note 581240 - LIS | Updating special stocks
https://websmp130.sap-ag.de/sap(bD1mciZjPTAwMQ==)/bc/bsp/spn/sapnotes/index2.htm?numm=581240
You will need to re-fill info structure to see the changes.
Jérôme.