If you need to modify an existing SKU Cross Reference record, you can do so by selecting the record in the SKU Conversion/UOM Reduction program and using the Zoom option. This action will cause the system to display an edit panel and load the panel with the selected record. At this point you can modify the record as required (normally only the ratio field is modified) and save the change with the Save key.
You may also delete an existing record in the program (assuming that you have been granted the appropriate security rights) by highlighting the record in the program and using the Delete option to permanently delete the record. This option would be used to remove records for parts that you no longer process or to remove a record that was entered with incorrect item information (the large and small unit of measure item numbers cannot be edited in the panel).