Not able to Revoke SES Approval after doing MIRO for Partial Qty.

Dear Expert,

I created PO for Service Qty.=10 and Price 100

I Created SES for Service Qty.=5 and Price 100

I done MIRO for Service Qty. =3 and Price 100

Now i want to change the SES Qty. to 3, as i want to raise the balance Qty. to another Vendor

While revoking the SES approval i am getting following Error-

Deficit of PU IR quantity 3.000 YR

GR Based IV and SR Based IV is ticked

If i had done MIRO for partial amount system should allow me to change by MIRO Qty.

I checked many thread but not getting similar situation

Regards

Kamal Kant