Explanation
The automatic account determination is used to assign the correct general ledger accounts for the inventory postings. If the account determination is set up incorrectly, the system will issue an error message when posting a transaction that affects the inventory value or quantity. The transactions C, D, and E are examples of such transactions, as they involve stock movements between different valuation areas, stock types, or company codes. The transactions A and B do not affect the inventory value or quantity, as they only change the material master data or the purchasing info record.References: SAP Help Portal, SAP Community