SO Import Utility

We are having difficulty using the SO Import Utility for a secondary company setup in our SAGE 500 (2013) system.

It works fine for our main company, but when we try and use it for the 2nd company it just fails -  no real error message.

Sage support has looked into our data and they have come up empty -  we really need to use this utility very soon and

do not know how to proceed.

One question came up  - is it required to populate the PRIMARY VENDOR in the Inventory records, even it not going to drop ship

to use this utility?  

Thanks for any help out there!