1. SAP S/4HANA Help Portal - Account Assignment in Purchasing: "The account assignment category determines: The nature of the account assignment (cost center
sales order
and so on). Which accounts are to be charged when the incoming invoice or goods receipt is posted. Which account assignment data you must provide." This directly supports option B. The same document details how GR/IR control indicators are set within the account assignment category
supporting option C.
URL: https://help.sap.com/docs/SAPS4HANAON-PREMISE/af9ef57f504840d2b81be8667206d485/a763b6535fe6b74ce10000000a174cb4.html (Path: SAP S/4HANA -> Materials Management -> Purchasing -> Account Assignment)
2. SAP S/4HANA Help Portal - Configuration of Account Assignment Categories: The configuration settings for an account assignment category include indicators like "Goods Receipt" and "GR Non-Valuated". This explicitly demonstrates that the account assignment category controls the goods receipt process.
URL: https://help.sap.com/docs/SAPS4HANAON-PREMISE/af9ef57f504840d2b81be8667206d485/7563b6535fe6b74ce10000000a174cb4.html (Path: SAP S/4HANA -> Materials Management -> Purchasing -> Account Assignment -> Configuration of Account Assignment Categories)
3. SAP Press (2022). Materials Management with SAP S/4HANA: Business Processes and Configuration. Rheinwerk Publishing. Chapter 5
Section 5.2.4
"Account Assignment Category
" explains that this key determines the account assignment data required (e.g.
cost center
G/L account) and controls the subsequent goods and invoice receipt postings. This supports both correct answers B and C.