Re: MRP Arguement- Al is correct

Jim/Al:

Just a clarification to Jim's comments below to Al:

"Since MRP CL program first clears all planned orders and later creates 
 whatever planned orders are appropriate, there are no reschedule messages on 
 planned orders. There could be reschedule messages on Firm Planned Orders 
 however."

Please note that there is a circumstance in which a Planned Order can have a 
reschedule date.  For a Master Scheduled Item (i.e. MRP Code = "M"), the 
Horizon Date will be used as a time fence within which MPS cannot place a 
Planned Order.  If a Planned Order should be created within the Horizon, MPS 
will create the Planned Order on the first available date after the Horizon 
Date and will issue an Expedite Reschedule Message referencing the actual 
required Due Date.  The user can then manually change the Due Date to a date 
within the Horizon.  However, you also must change the Order to a Firm 
Planned Order.  Otherwise, MPS will place it back where it originally was 
outside the Horizon.

If you have any further questions, please feel free to contact me.

Thanks.

Les Mittman
(847) 831-9388

***********************************************************
In a message dated 8/30/00 8:12:53 PM Central Daylight Time, Zzbpcs@aol.com 
writes:

<< Subj:     Re: MRP Arguement- Al is correct
 Date:  8/30/00 8:12:53 PM Central Daylight Time
 From:  Zzbpcs@aol.com
 Sender:    owner-bpcs-l@midrange.com
 Reply-to:  BPCS-L@midrange.com
 To:    BPCS-L@midrange.com
 
 In a message dated 8/30/00 4:25:29 PM Eastern Daylight Time, 
 MacWheel99@AOL.COM writes:
 
 << Am I correct about all this, or are my co-workers correct that in this 
  respect I have got it wrong? >>
 
 Al.....you are absolutely correct.
 MRP reschedule dates are only for "live" orders and are only suggestions.
 If you follow the suggestion and change a shop order due date, the next MRP 
 will try to line up its components.
 Since MRP CL program first clears all planned orders and later creates 
 whatever planned orders are appropriate, there are no reschedule messages on 
 planned orders. There could be reschedule messages on Firm Planned Orders 
 however.
 I have been working inside the guts of BPCS code since Aug 1984 ( S/24, 
S/36, 
 S/38, and now the glorious AS/400 )
 and have even modified both the CL programs and the RPG programs
 so I am confident to tell you, Al, you are absolutely correct in your 
 description.
 By the way, it is not hard to test....... create 3 new 'dummy' Items & run 
it 
 out...... 
 
 Peace,
 Jim Barry
  >>
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