Is it possible to use part within different operations within a BOM? When our engineering team look to add a new OP it move the part within the BOM and loses the association with the original OP.
How does Epicor handle a machined part has to go from a saw to a lathe to a milling machine i.e. require 3 operations?
The material is issued to the first op where it is used. In your machining example, the sawing Op is where the material is first used.
If the material was paint, and more was required at different ops, like:
Cut -> Lathe -> Mill -> Paint -> Sand -> Paint
(the two paint ops use the same material, the 1st one is the first coat, the 2nd is the second coat)
If it takes 3OZ of paint for the first coat, your BOM would have a 3 OZ of the material to that OP, and if the second coat required 2 more OZ, there would be another Material line (2 OZ) tied to the second Painting op.
Think of it more as where/when the material is issued to the job.
We’ve had some cases where a single part is “used” on different Ops. Like if a tubing compression fitting is used. We remove the nut and ferrule from one end when it is first installed. It’s left off so that subsequent ops (like leak testing) can be done. Then a later op puts it back on. This isn’t reflected on the BOM, as the part (the whole fitting) has already been issued to the job. It’s in our work instructions to replace the nut and ferrule.
Edit
I guess we could have “split” the part like
OP 10, Assemble
MTL 10, P/N: FIT-101, Qty Per 0.5 EA
MTL 20, P/N: TUBE-11, Qty Per 3 FT
OP 20, Leak Test
OP 30, Paint
MTL 30, P/N: BLK-101, Qty Per 3 OZ
OP 40, Package
MTL 40, P/N: FIT-101, Qty Per 0.5 EA
OP 40 includes putting the “other half” of the fitting (the nut and ferrule) back on.
But if your job was for 10 and you only had 5 of FIT-101, it would appear as though you could complete OP 10, even though you’d need 5 more of the fittings.