We have weekly scheduled MRP Run with MRP type 'VB- Manual ReOrder Point' and lot size HB- Replenish to Max stock level
Lot Size = Max stock level - Current plant stock - Fixed reciepts
for ex: If I run MRP today with below values , system proposes PR Qty = 100 (as per above formulae Lot size = 100 - 0 -0 = 100) .
PR has been converted to PO and delivery date is mentioned in PO as Today's date + 4 weeks .
During Next week MRP run, System is not considered the PO as Fixed reciept elemnt due to Delivery date is after 4 weeks and creating PR again which we don't want.
However Our requirement is , If Open PR or Open PO exists during MRP run irrespective of delivery date it should consider as Fixed reciept and Procurement proposal (PR Creation)shouldn't happen as Open PO is already exists' .
Please suggest me changes I have to do for above requirement.