Material Transfer 
This function enables the transfer of material master data from SAP ERP to create or update the corresponding material record in SAP ME (see Material).
The material master is used by all components in the SAP ERP Logistics system.
The data contained in the material master is required for the following functions in SAP ERP to facilitate the integration:
In Inventory Management, for goods movement postings and physical inventory
In Production Planning and Control, for material requirements planning and scheduling
SAP ERP base unit of measure of the material is used in SAP ME material, inventory ID, BOM, and Production shop order records and then reported back to SAP ERP in confirmations.
You can also transfer material classification data (see Transfer of Material Classification Data).
SAP ERP discontinuation concept is not supported.
You have set up material master records with plant- and production-relevant data in the Logistics module.
You have set up ALE communication to create and transmit MATMAS03 IDoc (see Customizing for ALE for Communication with SAP ME and ALE Scenario: Material Master Distribution).
You create or update a material master record in SAP ERP (see Creating a Material Master Record)
You send it to SAP ME (see Procedure: Select Master Data)
SAPMEINT creates or updates the corresponding material record in SAP ME (see Material Maintenance).
During the update, the version of SAP ME material does not change.