Client wise delivery report

I am forced to bump this topic again as I am facing serious trouble to reconcile deliveries of multiple items to different customers. My customers are demanding statement of deliveries of all items for a period of time which isn’t achievable easily as the current delivery reporting is still insufficient and custom report isn’t versatile yet. Current method to achieve such report is by going to Inventory Items qty owned, qty on hand module. But it is impossible to memorize which customer bought which items as I have 217 items and 36K Delivery Notes

I think the delivery reports must be improved urgently. I have few ideas which @lubos could consider to implement.

  1. Qty to be shown as column in Delivery Notes
  2. New reports just like Sales Invoice currently offers e.g. Deliveries by item, delivery to customer, etc.
  3. Custom report improvement basis date, customer, item and quantity