Linking SubShip to RcvDtl

OK, another question - I need to determine the number of days parts were out
(including in-transit) at a subcontractor. RcvDtl has the date received but
I also need the date it was shipped out. I am trying to link the receipt
detail (RcvDtl) to the SubShipD (subcontractor shipment detail) but can find
no common, unique, fields. Any suggestions on how to do this or some other
way to determine the average time outside for parts to a given

-Todd C.

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