Data Migration Framework - Product Entity - Multiple companies shared products

Hi,

I am importing Products/Items in to 2 companies use the Product Entity.

1) Import 2 x Product Master items using a simple file with the following fields:

2) These 2 items show up as Product Masters (with No Storage Dimension) one of which is 'CHLO.SFT.3STR.C&S'

3) Import Product entity file containing 83 released products including an instance of 'CHLO.SFT.3STR.C&S'. (Result 82 created, 1 updated)

These 83 items appear in both Products and Relased Products. The updated record seems to refer to the fact that the Product Master is updated to show the Storage Dimension (SWL) of the 'CHLO.SFT.3STR.C&S'.

4) Now I switch to Company 2 and import a different Product entity file which also contains 'CHLO.SFT.3STR.C&S'. This import (to staging (26) and then to target (25))  is succesfull for 25 items (which appears as released products) however the row based on the Product Master Item fails with the message:

Results. Record ('CHLO.SFT.3STR.C&S') -. Cannot create a record in Products - storage dimension groups (EcoResStorageDimensionGroupProduct). Product: CHLO.SFT.3STR.C&S, SW. The record already exists. Data written to target ('25' records created, '0' records updated)

Note that the Storage dimension group in steps 1 to 3 above was SWL and in step 4 SW.

(Note that I have been repeatedly importing and then deleting Products Masters, Products and released Products so there could be some garbage causing this error.)

 Any suggestions?

 Thanks