Published on
November 5, 2008 in
PP.
Tags: PP.
You can use the reorganization function to get rid of outdated and/or obsolete planned independent requirements. Furthermore you can delete histories of the requirements from the database.
In these transactions you work with a key date. Requirements before this date are impacted by the transactions. It is possible that a Reorganization Period is set for your plant:
IMG > >Production>Production planning>Planned independent requirements > Define the reorganization interval
You enter here the number of days that the system subtracts from the system date to fix the key date. This setting overrides any manual key date that you enter in the transactions!
Published on
November 4, 2008 in
PP.
Tags: MRP, PP.
Today we learned from SAP Support that it is not possible to distribute dependent requirements through time for Available to Promise.
What does that mean? Well in our case (process industry) it means the following:
We have a material B1 that is made from A1. We sell both items A1 and B1. Since this is process industry we want weekly process orders to become available on a daily basis. Enter distribution function. When we release a process order for B1, SAP neatly distributes the total process order quantity over 7 days of the week. At the same time dependent requirements are created for material A1. When we check the stock/requirement list (MD04) for materials B1 and A1, in both cases SAP distributes the required quantities during the week.
When we do an ATP check (CO09) for material B1 we can see that every day some quantity becomes available. However, for material A1 the dependent requirements from MD04 are not visible anymore The dependent requirement is taken on the first day of production for the full quantity. This seriously disturbs ATP. This leads to a shortage at the beginning of the week that isn’t there in real time.
How on earth is this not supported by standard SAP R/3, since this seems a standard requirement for any material that is both a sales item AND a component?
SAP Notes: 574800, 572347, 77895
Published on
October 31, 2008 in
PP.
Tags: MRP, PP.
Blocking storage locations from MRP can be useful e.g. if you wish to exclude inventory in showrooms from procurement decisions.
To block storage locations from MRP you can go to to IMG > Production >Material Requirement Planning > Planning > Define Storage Location MRP per Plant. In the plant/storage location overview set indicator ’1′ behind the location you wish to exclude from MRP.
This is a very simple configuration. However if you overlook this you may run the risk of implementing MRP areas for the same purpose, but with a lot more effort and impact.
Published on
October 26, 2008 in
PP.
Tags: BOM, PP.
When you are in Process Industry environment the Bill of Material is maintained in a recipe in transaction C202. If you try to maintain it directly through CS02 the system will give you the error: “BOM can only be extended via Master Recipe”.
In some cases it may be necessary to still maintain the BOM in CS02 even though you are in a process environment. To bypass the error where it is not possible to create a BOM once a Master Recipe was maintained for a material implement SAP note 651282. This will allow you to change the status of the message to either warning, error or no message at all.