When we get proposal from MRP to produce an item where we have phantom line in the formula, we get in the same time the derived planned order for the phantom item.

Very often our planners update quantities by increasing our decreasing the required quantity calculated by the MRP for the “main item”.

When we increase a quantity required for the “main item” the derived proposal update take into consideration the update of the formula number & route number which are driven by the "from quantity"

But when the “main item” quantity is decreased then the derived planned order seems to not be fully updated (formula number, route number stay the same even if a formula and route should be used regarding to the newest quantity)

It should be useful to have the same behavior in both cases (decreasing or increasing the quantity) in order not to have different approach in our daily process