Sage 300 - landed costing with Accellos WMS

SOLVED

As the subject states - our customer wants to use Accellos with Sage 300, and use the Sage300 landed costing function.  The customer receives containers with multiple POs on board, receives them in Accellos and then the receipts are passed to Sage300.  The customer has a single invoice for customs charges, and wants to apply them across all receipts in the container.

The problem I think I have is that Accellos passes each PO receipt over to Sage300 as a separate receipt document, instead of a single document where we could use the "additional costs" to apply/spread the customs invoice.  This would mean that the customer will have to figure out the custom charges manually and apply them manually - not an acceptable solution.

How have other folks dealt with this (assuming that someone must have!)?

Thanks.