One of our customer has a custom menu in a way that If a person right-clicks on that ,it changes the planned delivery date of all the PO lines and replace all those dates with the date of the line on which user did right-click

Now the issue here is that there are multiple dates in the system that are connected to this planned delivery date which should also get changed .

So need to clarify the logic that changes all kinds of dates in PO Line and in Inventory Part Availability Planning Screens.