You can delete materials either one-by-one or in bulk.
To delete materials one-by-one:
1. Navigate to the "Items" screen and find your material in the "Materials" list. Click on the material to open a material card.
2. Click on the 3-dots at the top corner of the material card and select "Delete" from the drop-down menu.
To delete the materials in bulk:
1. Navigate to the "Items" screen and go to the "Materials" list. Check the tick boxes for materials that you wish to delete.
2. A "Bulk actions" box will appear at the top of the table. Click on it and select "Delete" from the drop-down menu.
In either case, Katana will notify you when a material is currently used on any open orders or Product Recipes. You can still delete materials even if they are actively used. On orders, a deleted item will be displayed with a strikethrough style.