| Item → Category | Link (to another DocType) |  | 2 |
| Purchase Order Item → Item | Link (to another DocType) |  | 1 |
| Purchase Order → Supplier | Link (to another DocType) |  | 1 |
| Stock Entry Item → Item | Link (to another DocType) |  | 1 |
| Sales Invoice Item → Item | Link (to another DocType) |  | 1 |
| Sales Invoice → Customer | Link (to another DocType) |  | 1 |