Simple change to Product Availability screen
A few simple changes on this screen would help immeasurably for customers using batches. An example image is shown above of how confusing the current way it works is.
Change 1) Add a checkbox to breakdown by batch and set to off by default
The current screen makes it actually very difficult to know how much stock is actually available. You have to calculate numbers in your head. Whilst knowing batches can be useful is certain circumstances - it is a much rarer question than just knowing how much product by SKU.
Change 2) Allow showing purchase attributes in the drill-down
We use additional attributes to add info like late deliveries and other information that might be helpful in context.