Sequence of Master Data Replication 
Since some master data is interdependent, it is important that you introduce the master data in a special sequence. You can group master data into four types depending on how frequently the data changes. First you have to replicate all master data that can be pre-delivered (type 3), then you replicate master data that changes infrequently (type 2), in a third step you replicate master data that changes frequently (type 1), and in a fourth step you introduce special value lists using configuration. For more information about the different types of master data see Initial Replication of Master Data.
If you want to work in an SAP ERP-SAP Sourcing integrated environment, you have to extract the master data in the following sequence:
Through system set-up activity, you replicate all master data that usually does not change after initial set-up (type 3) in the following sequence:
Currency ISO Code
Unit of Measure ISO Code
Country ISO Code
Currency Code (after corresponding ISO code)
Unit of Measure (after corresponding ISO code)
Incoterms
Transaction Types (purchasing documents)
Product Type (material type)
Pricing Condition Type (value list)
Vendor Account Group (value list)
You then replicate all remaining master data that changes infrequently (type 2) and the product category in the following sequence:
Company Code
Purchasing Organization
Purchasing Group
Payment Term
Product Category (Material Group)
Plant
Note
You can use the report BBP_ES_CUSTOMIZINGDATA_EXTRACT to extract the Customizing data of that type so that the extracted data is rendered as an XML document. You can use the Business Add-In (BAdI) Additional Data to the Customizing Data Extractor (BADI_BBP_ES_ADDITIONAL_DATA) to enhance or extend the Customizing data of this type during the extraction process.
In the report mentioned above you can choose whether to store the XML files on an application server or on a local PC. You can use the BAdI BADI_BBP_ES_DOWNLOAD_XML to define locations other than these two for saving the XML files.
In a third step, you replicate all master data that changes frequently (type 1) in any order:
Material (includes material/plant relationship)
Vendor (SAP ERP)/Supplier (SAP Sourcing) (includes supplier/ purchasing organization relationship)
Exchange Rate
In a fourth step, you introduce special value lists using configuration.
For more information on master data integration and configuring SAP ERP and SAP Sourcing, see the configuration guide for the integration of SAP ERP and SAP Sourcing on SAP Service Marketplace at http://service.sap.com/eso.