prolem with WO and leadtime of purchased components

[Exsonqu_Qu]

Hi, Klaus:

I think the normal procedure for MRP operation is:
For those factory which run in mode Build to orders, they have to receive SO before they can issue a WO.
For those factory which run in mode of Build to plan, they have to prepare the master schedule first, then they can issue a WO.
For those factory run in mode of mixing of above, they also have to have both of above.
That means you cannot manually issue a WO without SO or FOR, otherwise, the Top part will have no required date available. So you have to prepare the master schedule first. You can do it via main menu->manufacture->master schedule. Then create the schedule for A. Then run MRP, then you can convert your WO from MRP Planned Work orders etc.

Hope it's helpful.

Best regards!

Exson

which actually can be confirmed by the following:

create a BOM:

A: has AB, B

AB: has B, C.

create workorder for A.
Now there is demand for B from A and also from child AB.

Run Mrp calculation: for one demand of B, lead time is used, for the other, it is not.

If the planned WO for AB is converted, not lead time is used for B, because the component B which was on a lower level (or higher - I don't remember the definition) in A now moved its level after the WO for AB was created.

Maybe a specialist knows where to enter the leadtime for the toplevel components in levelnetting.

Klaus