Unconstrained Plan Has Early Planned Orders For Supply (Doc ID 2298087.1)

Last updated on AUGUST 17, 2017

Applies to:

Oracle Advanced Supply Chain Planning - Version 12.2.6.1 and later
Information in this document applies to any platform.

Symptoms

On : 12.2.6.1 version, Memory Based Planner in PROD

Users are on 12.2.6 and have applied patch 25074533 - 12.2.6.1 - replaced by new mandatory patch 12.2.6.2 - Patch 25508888. They are running an unconstrained ASCP plan. They see an issue where planned orders appear to be generated too early for supply. Example data:

Item = SH30050.02 inv item id = 4056263
Org = BIO:LGM org id = 1732
SS = Hard INV qty = 1
FDS = 40
Calendar 5 on 2 off
On hand qty = 8

Planned order qty = 1 due 23-AUG-23017 pegs to SS due 07-JUL-2017 - trans id = 2133382782

Plan name = PP-AP-LS-C plan id = 99056
Plan run date 07-JUL-2017

Horizontal plan shows PAB on 10-JUL-2017 = 4 and SS = 1. The following week of 17-JUL-2017 there's demand for qty = 0.6 and a planned order qty = 1 is generated which pegs to SS only. PAB now increases to 4.4 vs SS = 1 - In checking pegging of the on hand the fiirst qty = 4 pegs completely to past due sales order demand qty = 4 so that's used up. Second qty = 4 on hand pegs to many forecast demands starting on 27-JUL-2017 out through 27-DEC-2017. This goes below SS around Oct/Nov time frame. Users state they see this issue on many items (dozens).


EXPECTED BEHAVIOR
-----------------------
Expect the planned order to be generated to satisfy the demand at the time it's needed and not months earlier than the demand

STEPS
-----------------------
The issue can be reproduced at will with the following steps:
1. Run unconstrained ASCP plan
2. review supply demand output and horizontal plan data
3. Find for some items, planned orders for supply are unexpectedly due months earlier than demand

Cause

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