Commt to backflush location, but not a lot

Hi,

I have an interesting conundrum that I'm try to figure out.

I have a structure as follows:

Component C is lot controlled - optional (0)

Parent B is lot controlled and consumes Comp C

Parent A is lot controlled and consumes Parent B

Now here's the challenge...

After raising a WO for Parent B, need to commit Comp C to the workcentre location, which is a secondary location, but not commit it to any lots within it, i.e.

Primary = PRIMARY

Workcentre Location = WC1

Stock is residing in WC1 + Lot 1 and WC1 + Lot 2

The need is to commit to location WC1, but not any of the lots. The reason for this is that the user will manually select the Lot to be used at time of consumption.