[bmj_23]

Bob - in that case, set up the main cost on the sell side rate record to be based on the buy side allocated cost of the order but limit that (using a rate condition) to where the cost type = B (base).

Then, on the same sell side rate record, set up a new accessorial cost that is based on the buy side allocated accessorial cost e.g. the Fuel Surcharge accessorial. You can limit that (again, using a rate condition) to be where the cost type = A (accessorial) and to a specific accessorial code if necessary.

If you set it up this way, then I think on your sell side shipment you should get two cost lines - one based on the buy side allocated base cost and one based on the buy side allocated accessorial cost.

Re-post if you are still having issues.