PO Price change

Hi Guys,

I have requirment as below

If GR is completed against PO then should nto allow to change price

For this requirment I am checking, EKBE, if latest movement type is 102, then should not allow user to change PO price. Which was working fine

But, we also have requirment, if Partial GR is done for PO, then should not allow user to change price.

Example

PO QTY = 3

EKBE TABLE

Purchasing Doc. Movement Type Quantity

4XXXXXXXXX 101 1.000

4XXXXXXXXX 101 2.000

4XXXXXXXXX 102 1.000

4XXXXXXXXX 102 2.000

4XXXXXXXXX 101 1.000

4XXXXXXXXX 101 2.000

4XXXXXXXXX 102 2.000

In this case, we have done GR for 1 qty and now user should not able to change PO price for line item.

How to find out whether the PO is having partial GR or not