SKU/shipping question


I created a shipment plan with 2 different products but then accidentally deleted one of the products from the manage FBA inventory page. After I re-added the product to my inventory page using the same SKU as before, the number of units in my shipping plan for that product, doubled. Since there is no way to edit the number of units in approved shipment, if I start over and create a new shipment for the 2 products, can I use the same 2 SKUs as before?