Very useful BUT. When I set two days it starts to behave in a weird way and put - 1 next to product quantity for items.
Plus it's expensive
I'm not 100% sure what you mean but your report might be misconfigured. Negative quantities can be expected in the case of refunds or negative quantity on hand (if you enabled overselling for your products).
Feel free to reach out at email@example.com so that we can sort this out for you.
I think this app has potential.. However, we found it to be difficult to figure out. I couldn't find adequate support online and I didn't have time to email support with questions. I'm cancelling it.