Indicator determining whether the following requirements are allowed for the dependent requirements of the material:
You can maintain this indicator in the following places:
The setting for the explosion type overrides that in the material master record.
If the material is assigned to a material type that does not allow quantity-based inventory management(KMAT type) in this plant, you can set the indicator to individual requirements only.
If the stock is to be managed in sales order stock or project stock, the indicator must be set to one of the following options:
If a material managed in project stock is to be procured from another plant using a cross-company-code stock transport order, the indicator must be set to 2 (collective requirements) in the issuing plant because, in this specific context, individual project stock management is not possible in both plants.
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If you set Individual indicator for both header material and dependent material, then if sale order comes for 1000 qty, then During MRP run system will create a plan order with reference to sale order and for dependent material, system will plan dependent material as sale order relevant. System won‘t consider warehouse stock for that sale order.
In your Case, you can set Individual/collective indicator as 1 for dependent components not for Header material. Mostly this can be used for make to order scenario.
If you set the Individual/collective indicator as 1 for the Header material, during MRP run system will not consider the existing warehouse stocks for the Sales order, MRP will create Planned order against of Sales order.
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indicator = "1 " --- Mostly for KMAT material (KMAT type) and make-to-order scenario .
indicator = "2" ----
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What is the relevance of individual/Collective Requirement indicator from MRP4 view of material for Finished product as well as its sub assemblies in case of make to Stock planning strategies.
Answer:
Individual & collective indicator plays a major role in MRP.
If you set Individual indicator for both header material and dependent
material, then if sale order comes for 100 qty, then During MRP run system
will create a planned order with reference to sale order and for dependent
material, system will plan dependent material as sales order relevant. System
won‘t consider warehouse stock for that sale order.
If you set collective indicator for dependent material system will
consider warehouse stock for dependent material.
MRP-4 as 1 : In individual planning, this indicator is used
to display the dependent requirements of a component separately.
MRP-4 as 2 : In collective requirements, this indicator is used
to display the dependent requirements of a component grouped together.
This Indicator is useful to control the planning of dependent requirements
if the main product is being planned with strategy 20 i.e.; MTO Process.
MARC-SBDKZ indicator controls whether individual or collective
customer requirements planning is allowed for dependent requirements means
low level in BOM.
If you define individual requirements for explosion, dependent requirements
for a component are shown individually on the superior low-level code.
If you define collective requirements for explosion, required quantities
for the material are summarized independently of the sales order.
In the MTO scenario, if you want to check the unrestricted raw material
stock when you run the MRP for sales order. Please check by selecting
individual/collective requirement as 2.
Please note:
- If you select individual requirement then system will not consider
available stock and generate Proposals for every single requirements.
Also you will find PR and Plan order with account assignment of Sales order
(in case of MD50).
- If you select collective requirement then system will not generate
planning proposals through MD50. In that case you have to
go for individual MRP (MD02 / MD03 / MD41 / MD42).
For FG stock you can assign to sales order through MB1B by 412
E movement type.
MRP4 -- Dependent requirements ind. for individual and coll. reqmts
原文：http://www.cnblogs.com/jefflu2012/p/4382443.html