To find blank aliases for a specific alias field, run the following inverted filter:
- Go to the filter and in the main section select Inverted Filter
- Go to the product section of the filter and select Barcode
- In the text field type %[0-9,A-Z]%
- Select the correct alias you want to run the filter for then press Like and then OK
- Run the filter
Remember that you can also save the filter by right clicking on the filter section and saving as a title you choose.