Available for sale

1

Can add a new future in items like check box

  1. Available for sale
  2. Available for purchase
    So when i make purchase invoices, only items available for purchase are seen
    When i make a sale, invoices only items available for sale are seen
    And if i check the 2 check boxes, it appears in both
2

How could the program possibly know if an item is available for purchase?

And how does your request on availability for sale differ from suggestions already in the ideas category?