Question

MS Level 1 Part - Shop Order Requisitions

  • 23 September 2023
  • 1 reply
  • 74 views

Badge +3

I have played with “Create S/P Req”, and I cannot get requisitions to be in the past (like in MRP).

If you choose

Create S/P Req  - you will only get reqs after the DTF, but none after PTF

Do not- well you don’t get any reqs 

Entire Horizon - you get anything after DTF and after PTF

...from MRP - you do get the reqs in the Past, but the Forecast does not appear in IPAP.

 

Help Please


1 reply

Userlevel 6
Badge +12

Hello,

Well that is the genetics of Master Scheduling and Demand Time Fence (DTF) and Planning Time Fence  (PTF)

 

|=========== frozen zone ========= | ===== slushy zone ===== | ===== liquid zone =========> time

Today                                                         DTF                                          PTF

Simplified way of looking at the schedule:

The top manager is king                         The master scheduler is king   The level 1 calculation is king

Master Scheduling is a balancing act of doing too many changes in the near future versus inflexibility in production. The time fences acts as decision points.

Inside PTF the system wont create any SO Reqs for you. You can of course manually create SO Reqs or Shop Orders inside both time fences.

Cheers,

Mats

 

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