1. Go to Catalog Management menu in Supplier Management

If you need to hide products:

- Edit the product in the Catalog - tick the box to hide the item and save it.

Such items could be restored(by unmarking it as hidden), but when the product is hidden you can't add it to any documents.

If you want to delete products, press the Red Bin icon which is opposite to the product and confirm it.

But take into attention that removed products can't be restored.