在用MM01创建物料的时候会需要选择相关的维护视图，这些视图哪些已经维护，哪些尚未维护，都记录在表 MARA 的字段 VPSTA 和 PSTAT 中。分析这两个字段，就可以知道该物料的维护状态。

User department	View in MM01	Maintenance status
Work scheduling	Work Scheduling	A
Accounting	Accounting 1 Accounting 2	B
Classification		C
MRP	MRP 1 MRP 2 MRP 3 MRP 4	D
Purchasing	Purchasing Foreign Trade: Import Data Purchase Order Text	E
Production resources/tools		F
Costing	Costing 1 Costing 2	G
Basic data	Basic Data 1 Basic Data 2	K
Storage	General Plant Data / Storage 1 General Plant Data / Storage 2	L
Forecasting	Forecasting	P
Quality management		Q
Warehouse management		S
Sales	Sales: Sales Org. Data 1 Sales: Sales Org. Data 2 Sales: General/Plant Data Foreign Trade: Export Data Sales Text	V
Plant stocks		X
Storage location stocks		Z