This would usually be an issue with the data for the selected SKU attributes
If you get more than one result when you do a search for a phrase that is in one of the attributes used in the SKU search function, it could be one of the following reasons:
- This could indicate that the attribute is not setup to be used in the SKU search.
- The attribute used in the SKU search my not have unique values.
- The search phrase might match more products because of partial matching. For example a search for "1234" would match an product with an SKU="1234" but also a product with na SKU="1234567". This can be turned off if you only want exact matching.