Editing a supplier:
1. Go to Main Navigation > Customers & Suppliers > Suppliers
2. Click on the View icon on the summary screen next to the supplier you would like to change
3. Click Supplier Information tab at the top of the screen
4. Then click Edit and make the necessary changes to the supplier
Deleting a supplier:
1. Go to Main Navigation > Customers & Suppliers > Suppliers
2. Click Delete next to the relevant supplier - you will be asked to confirm that you wish to delete the supplier
3. Click OK to confirm the deletion of the supplier