How to find a desynchronised orders
A small icon in your Purchase Orders tab will indicate, that an action is required from your side.
The Out of sync button tells you that a supplier has not been able to deliver all the package you ordered. You can check quickly and interact :
Click on the Desynchronised button
Click on details
At the bottom of the page, you will find the number of packages the supplier has validated
Distribute the packages to match supplier's quantity
Click Finish to save the modifications