Al, Your logic is sound one of the most common ways to schedule service purchased parts is to code them as master scheduled items within the facility. When MPS/MRP generates you will see the dependent and independent demand during the pegging process. Dan Sweeney Senior Technical Consultant PHOENIX Business Consulting, Inc. Tel: 860-432-9881, Cell: 860.490.6712, Fax: 860-432-9881 www.phoenixbcinc.com -----Original Message----- From: bpcs-l-bounces+dsweeney=phoenixbcinc.com@xxxxxxxxxxxx [mailto:bpcs-l-bounces+dsweeney=phoenixbcinc.com@xxxxxxxxxxxx] On Behalf Of Al Mac Sent: Friday, October 20, 2006 1:24 AM To: BPCS_L discussion Subject: [BPCS-L] Resell Purchased / Master Schedule ? * One rule of thumb says MRP140 needs to "M" Master Schedule End Items that we manufacture and sell for customers, so that MRP will calculate what's needed of all components to be manufactured or purchased. * Another rule of thumb says raw material that we purchase to be used as components of the manufactured parts, nor any sub-components, should not be "M" coded, just the end items that we sell the customers. * A dispute has come up with respect to what is the correct Master Schedule coding for items that are coded purchased, but can also be sent customers as THEIR service or repair parts? It has been several years since we had MRP education, so different people memories stray into disagreements needing clarification. I had thought that when the raw materials show up as components of master scheduled items, currently on customer orders, that MRP will correctly calculate how many we need thanks to both dependent and independent requirements, but if a customer orders a supply of our raw materials, that are not currently needed due to being in the BOM of master scheduled active items, then by not having these raw materials master scheduled, we have effectively told MRP to ignore these requirements, and that having extra items coded as master scheduled did no harm to MRP. We are on BPCS 405 CD mixed mode. We run MRP500 then MRP600 by facility, with a few extra runs of MRP500 thanks to a prior thread on BPCS-L regarding parts complexity. Our BOM has several levels. We used to be heavy into DRP resupply orders, but that part of our business is now about dad. - Al Macintyre http://en.wikipedia.org/wiki/User:AlMac http://www.ryze.com/go/Al9Mac BPCS/400 Computer Janitor ... see http://radio.weblogs.com/0107846/stories/2002/11/08/bpcsDocSources.html
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