Firmed and released schedule lines being modified in the firm zone
I am using a Firm Zone (FZ) in the Schedule Agreement of 30 days, and a Planning Time Fence of 5 days, with an MRP type P1.
Schedule Lines are firmed (marked with * in MD04) when they get into the FZ. But it often happens that the system modifies them afterwards
Is this behaviour normal?
How can I avoid that?
Thanks in advance.