In SAP S/4HANA repetitive manufacturing,line loadinginvolves planning production quantities and capacities across production lines. Options include:
* Run MRP with quota arrangement(B): MRP (MD01/MD02) with a quota arrangement (MEQ1, marked MRP-relevant) distributes production quantities across multiple production lines (production versions) based on predefined quotas (e.g., 60% Line A, 40% Line B). This plans quantities and implicitly considers capacity via the linked work centers, visible inMF50.
* Run PP/DS heuristics for repetitive manufacturing(D): PP/DS heuristics (e.g., SAP_PP_002 in
/SAPAPO/CDPSB0) plan both quantities (e.g., creating planned orders) and capacities (e.g., finite scheduling on production lines) for REM scenarios. This integrates detailed scheduling with line loading, optimizing resource use.
Assign planned orders manually in the planning table(A) (MF50) adjusts existing quantities but doesn't inherently plan capacities-it's a manual tweak.Run MRP with automatic selection of production version(C) selects one version (e.g., via alphanumeric order), planning quantities but not dynamically balancing capacities across lines. This is per SAP's REM planning options.

The system checks the master data selection settings during the creation of planned orders and production orders in the following places:
In the bill of material (BOM), the system checks the selection ID, which determines which alternative BOM is selected for the material. The selection ID can be maintained in the material master or in the production version.
In the routing, the system checks the selection ID, which determines which alternative routing is selected for the material. The selection ID can be maintained in the material master or in the production version.
In the production version, the system checks the validity period, the lot size, and the selection profile, which determine whether the production version is valid and applicable for the material. The production version combines the BOM and the routing for a material and can be maintained in the material master or in the production version master data. Reference: SAP S/4HANA Manufacturing for Planning & Scheduling - Implementation Guide, page 16; [SAP S/4HANA Production Planning and Manufacturing Certification Guide], page 75.

In SAP S/4HANA, the validity of a bill of material (BOM) (transaction CS01/CS02) can be restricted as follows:
* By plant(B): BOMs are plant-specific by default (field: Plant in CS01). A BOM created for one plant (e.
g., 0001) is not valid in another (e.g., 0002) unless copied or extended (CS07), limiting its applicability to the specified plant.
* By period(C): The BOM header (CS02) includes "Valid From" and "Valid To" dates, restricting its use to a specific time range. MRP and production orders only select BOMs valid on the required date, allowing versioning or phase-outs (e.g., engineering changes via ECM).
By material type(A) influences which materials can be included in a BOM (e.g., FERT for finished goods), but it doesn't limit the BOM's validity-it's a material attribute.By material status(D) (material master, Basic Data) can block a material from use, but it affects the material, not the BOM's validity directly. This aligns with SAP's BOM management rules.