Material master data is the key to the power and flexibility of the system. Different people have different designs; I refer to the SAP master data design as follows:
| smNo | smName | spec | mtyv | mtyp | mrp | smtv | smty | unit | storNo | storName | whNo | sfCnt | yxts | sunit | punishes | purDays | tjno | mgName | chlorine | cadNo | mPic | mCad | usr1 | usr2 | usr3 | usr4 | usr5 | pPrice | sPrice | hdty | mMark | pgCnt | work | comp |
| Material coding | Material name | specification | Material category code | classification name | mrp parameters | Material type code | type name | unit | Warehouse code | Warehouse name | Location | Safety stock | Validity period | Sales unit | Purchasing unit | Purchase days | Storage requirements | Material formula | colour | Drawing number | Material picture | Material CAD drawing | Purchase unit price formula | Unit of weight | Plan unit price | customize | customize | Purchase prices | Unit price | Class code | mMark | Number of packages | factory | Company code |
| A | Finished product | 3 | Finished product | 1 | Meter | 008 | Finished product warehouse | 0 | 0 | 0 | 1001 | 1901V | ||||||||||||||||||||||
| A.0101 | Changde brand mechanical water meter | 3 | Finished product | 1 | 008 | Finished product warehouse | 0 | 0 | 0 | 1001 | 901V |