Header Table and Item Table in SAP MM for Stock Determination

In SAP MM, the Header Table and Item Table play a crucial role in stock determination. The Header Table contains information related to the overall purchase order, such as vendor details, order date, and delivery date. On the other hand, the Item Table contains details related to specific line items within the purchase order, such as material number, quantity, and unit of measure.

When it comes to stock determination, these tables are used to determine the availability of stock for the materials required in the purchase order. The system checks the Item Table to identify the materials being ordered and then looks up the stock availability in the storage locations specified in the Header Table. Based on this information, the system determines from which storage location the materials should be picked to fulfill the order.

Overall, the Header Table and Item Table form the backbone of stock determination in SAP MM, helping organizations efficiently manage their procurement processes and ensure timely delivery of materials.