E1: 34: Period of Supply (OPC4) Item with a Max Order Quantity and Supply Quantity that is Short of Demand Requirements Results In a Negative Ending Available (=EA) Quantity (R3483) (Doc ID 2863005.1)

Last updated on MAY 13, 2024

Applies to:

Symptoms

When Purchased Component of Stock Type M Parent Assembly has firm OP supply orders, already at maximum order quantity, or has another (G or L Messages inhibited) constraint, the planning action messages to Defer and Increase to meet a requirement greater than the supply can only create the Defer Messages, not the G increase. This leaves the supply order in the right date bucket but short of the requirement.

Steps:

1. Create P41026 P stock type Item Branch component record with planning data setup for OPC4 period of supply planning.
2. Attach the Purchased Component to a P3002 parent item branch M stock type item Bill of Material record.
3. Create Multiple P4310 Supply Order lines at or below the max order quantity but short of total requirements. Vary Dates to have single lines past due and future dated, and multiple orders or lines all on same dates, both past and future.
4. Create P4210 SO or P3460 Forecast demand for the parent item to force Defer of multiple orders to meet requirements. Confirm in P4021, that dates and quantities of purchase supply is short of requirements in multiple daily weekly or monthly P3413 time series date buckets.
5. Run R3483 and review time series, P3411 Messages, and P3412 Pegging records. Manually verify the time series calculations for any date bucket where adjusted requirements exceed adjusted supply quantities. Confirm that the calculated ending available quantity is negative, whether displayed in the time series as negative or blank or zero.

Cause