Community mailing list archives
RE: procurement scheduler and nested BOMsby
I'm not sure if repeating the scheduler run would always generate the desired result (haven't checked in detail), but in case you need to sort the procurements by priority of the product determined baesd on BOM records (higher level products first), you might check out these lines we wrote for a different purpose (based on 7.0):
From: Kurt Haselwimmer [mailto:firstname.lastname@example.org]
Sent: Friday, July 17, 2015 5:23 PM
Subject: Re: procurement scheduler and nested BOMs
Well then the answer seems quite straightforward - keep a check on the number of requirements created by each pass and then offer an option to repeat the process until this value is zero.
The proposed methods are to start at the bottom of BOMs and work up, or to priorities the order points so that presumably you do the high level items first so when you get to the little ones you have already created the requirement.
I am unconvinced either of these will work perfectly in all complicated BOM situations, repeating the process until there is nothing left to do will always work exactly as it does now.
On 17/07/15 09:43, Graeme Gellatly wrote:
<blockquote cite="mid:CAFmBtG0tWkkYayRs27+_H0WP0==KEVFen=aqg77WGZn=Ecskcg@mail.gmail.com" type="cite">
Search the bug reports, this exact scenario is covered in there with a patch which from memory was rejected as it was too complex.
On Fri, 17 Jul 2015 8:34 PM Kurt Haselwimmer <email@example.com> wrote:
+1 this is a key requirement for a professional MRP system.
The scheduler that computes order points and creates the manufacturingorders works OK, but for nested BOMs it needs to be run multiple times.Is there a way of triggering a re-run if there were things found duringprocessing that created new requirements?
for example, if we want to build a house, which is made up of a roof and4 walls, the roof being made of tile and the walls of bricks the BOMstructure might be like this:
house (1)roof (1)tiles (100)wall (4)bricks (1000
when we procure a house, it will create manufacturing orders for 1 roofand 4 walls, but these can't be produced because they will be waitingraw materials. Running the scheduler a second time will procure thetiles and bricks that are needed. If we have BOMs that are many levelsdeep we need to run the scheduler quite a lot, and it isn't clear howmany times to run it, or when we are done with running it, or whatexactly it is doing.
Is there any better process for achieving this?