If you have a product you supply by FBA you will want to price it less aggressively against a non FBA supplier. At the minute your FBA and non FBA products are treated the same.Therefore add a rule that applies to FBA products or non FBA products only:



i.e. if my product is supplied FBA and the other supplier is also supplying the product via FBA then match the price.



If my product is FBA and the other supplier is supplying direct by merchant then set the price of the product using other supplier price plus £1 or 20% etc.