It is very easy to make a mistake and cause a double backflush of the prod order materials. the system does not give a beep.

The Prod BOM Components have an estimated and a released quantity.

Certainly we should be able to over issue so released qty is higher than estimate. But that should only be possible manually.

We need a warning when the system is close to backflushing the same items twice. That cannot be correct and the user has to be protected against this just like the user gets  a message now at RAF when we have unissued materials.

 Over issue is just as bad as under issue. The way the system is now, only accounting would find out, when ending the order, that there is a strange double high material cost to this order.

The ways you can double flush are many. It can be the user defaults, where the system should really send a warning already when the user has "always" at start and "always" at RAF. It can be the parameters that control flushing when I skip Start or when I skip RAF.  It can be the parameters in execution . I can even more easily doubleflush because I can flush materials after completing an operation. I guess this is also possible without execution by having Bom consump = yes in the route card.

Please protect our users!