参考sap help官方文件
进出口，所用到的主数据如下：
- Vendor master record
- Purchasing info record
- Material master record
- Customer master record
主要用到如下的数据
- Vendor master records for general foreign trade data
- Purchasing info records for vendor declaration data
- Material master records for general foreign trade, legal control, preference processing data and refunds on exports (for one plant and cross-plant)
- Customer master records for general foreign trade, legal control, and documentary payments data
http://help.sap.com/saphelp_erp60_sp/helpdata/en/64/87ce346483ab24e10000009b38f83b/frameset.htm
