All items that have stock/stock tracking appear in the reorder report (typically all physical products).
The item group that the item is placed in determines whether the product has stock/stock tracking.
The products you do not want to appear in the reorder report should therefore be placed in a product group without stock tracking – examples could be products like 'Shipping' or 'Discount.'
It is defined during the creation of the product group whether it has stock tracking or not – this cannot be changed afterward.
To create a product group without stock tracking:
Go to 'Items'
'Groups'
'Create new'
Select 'Has stock' > 'No'
