R-Block issue in service based POs

Murthy Garu, I would like to share one of the issues I had last week. Problem: In our configuration, tolerance keys PP and PE were defined as 5% or 250% as both the limits. But when we create a SERVICE PO for 1000qty and $1 each, the invoice was not allowing to pay even $1001(not accepting even $1 tolerance also). It was shooting an R-BLOCK in the invoice posting. SOLUTION: In a service based PO, Material field is blank and GR/IR is unchecked in the line item level. In order to resolve this issue, I had put a check mark on Estimated price in the control condition tab in the line item level. If we just check this field(Estimate price), the PO is not going to look at the tolerance keys PP and PE. We have to define PS tolerance key(transaction code OMR6), as the service PO is going to look at PS since we checked Estimated price. Note: PE is defined in the following config: SPRO-->MM-->Purchasing-->Purchase order-->Set tolerance limits for price variance