How do I change an inventory classification without changing the GST Codes?

When you change the Classification on an inventory item the GST codes for that item will be changed to reflect the default GST codes associated with the new classification.

The attached plugin will extend the inventory import export tool so that you can change the classification and the GST codes in a spreadsheet.

Steps:

1. Import the plugin and run the script attached to the plugin.
2. Restart Jiwa
3. Export the inventory data to a csv file
4. Make the changes to classifications and GST codes in the csv file
5. Import the csv file making sure the 'Update existing inventory' box is ticked.
6. Check your data.