Please note that Amazon Policy does not allow duplicate listing in Seller Central, which are multiple SKUs under the same ASIN with the same fulfillment type and the same product condition (both new or used).
There are three scenarios that Amazon considers acceptable for multiple different SKUs under the same ASIN.
1) Multiple SKUs under the same ASIN have different fulfillment types but the same product condition.
2) Multiple SKUs under the same ASIN have the same fulfillment type but different product conditions.
3) Multiple SKUs under the same ASIN have different fulfillment types and different product conditions.
For the 3 scenarios mentioned above, BQool will display them all on the manage listings and reprice them properly.
However, if you encounter the Duplicate listings situation, it's suggested that enable repricing on one of SKUs only.