Item Category N (non-stock item) in BOM creation - Preq Generation

Hi All
I have a material component that is planned in APO and not in ECC6. We would like to keep the one BOM for the finished good. Problem is that when we perform the backflush in ECC6, the system wants to backflush the material and causes errors due to missing stock.
So I assigned the material as a non stock item in the BOM but the system will auto generate a purchase requisitions for Non stock bom components (item category N) when the process order is created. It is possible to turn off the auto creation of the purchase req for non stock bom components?
I have tried the following:
- Explosion type in item data, created new key with 'Switch off planning' indicator set in system configuration
- created new 'Z' item category with inventory management de-selected
Both approaches causes system error: Puchase data of material in not maintained
I also tried leaving as a stock item with the bulk material indicator selected in the item data. This does not work as the cif will then exclude the component when data is transferred to APO
Funny enough, the system does not generate a purchase req for non stock bom items when using Repetitive Manufacturing. Any help will be greatly appreciated
kind regards
Grant brockelbank

Hello Vivek
Thank you for your response
The item is a non stock item. I do not want this item to be backflushed at all. This can be achieved using the 'N' non stock item category but the problem is that the system will attempt to generate a purchase requisition when the process order is created.
I do not want the system to generate a purchase req in ECC6 as this item is a planning material that is planned in APO (used for medium to long term planning in a simulation version). We are hoping to use the one Bom for ECC6 and APO planning. The generation of the purchase reqs is a bit of a waste as we will never convert them and there is potential to cause issues for purchasing.
Any other thoughts?
Thanks again for your help
kind regards
Grant

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What is use of Item Category N(non-stock item) in BOM creation

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What is use of Item Category N(non-stock item) in BOM creation ?
regards
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Hi,
This item category is used for components which are not kept in stock if they are used in a bill of material (BOM). Non-stock items can be entered in the BOM with or without a master record. To enter a non-stock item without a master record, you must simply enter a descriptive text.
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We are on ECC 5.0. I am having issues when costing assemblies that consume materials created with Item category 'N - Non-stocked items' in BOM.
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Hi,
There can be multiple reasons for this.
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Regards
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Dear,
Check this thread related to non-stock items,
Re: Avoid automatic creation of purchase requisition for bom item N
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Requirement is given below.
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Please somebody can help me.<<Text removed>>
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Reddiy.A.V
Edited by: Matt on Oct 12, 2011 6:46 AM

For the orders which you consumed, do the reversal of that material document. Also create one GR for the qty which has been returned to vendor & keeping the stock to storage location.
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Non stock item requisition from the order

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Solved by our own team

Item Category N (non-stock item) in BOM creation - Preq Generation

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