A Sales document is divided in to three levels. List those three levels. | SAP-SD

   The three levels in which a Sales document is divided are as follows:
?    Header Level (Table VBAK) — All the master data, such as the customer material master, the Sales area, and the organization data of a Sales document is stored at Header level in the VBAK table.
?    Item Level (Table VBAP) — All the material item data, such as the order quantity and the material master data of a Sales document is stored at Item level in the VBAP table.
?    Schedule Line (Table VBEP) — Information about the material delivery dates and the delivery quantity of a Sales document is stated at Schedule line in the VBEP table.