How can I search a list of SKUs using the Product Search tool?
If the SKUs share a common attribute, you can search by that attribute. For example, if all SKUs have the same color of black, you can enter "color:black".
If they don't have anything in common, you have to use the following syntax "sku:ABC123 OR sku:123ABC", listing each SKU individually with the OR operator between them.
For more help on using the Product Search tool, read this article here.