Error: Line quantity and distribution quantity does not matches

Hi everyone,

I have problem in PO, a user has generated requisition of 12 quantity item having 3 lines and distributions of quantity 6,3,3 respectively.  But supplier has provided 7.63 quantity of items. Now, he tried  to generate PO from the requisition selecting in autocreate only one line of requisition quantity 6 and changed its value to 7.63 on PO. While saving it has errored as line quantity and distribution quantity does not match.

In this scenario, I am just confused to see that one line of requisition on PO has three distributions separately (all distributions of Lines on requisitions) in normal practice it should have showed one distribution against one line, not all distributions against one line on PO.