1. SAP Help Portal
SAP S/4HANA
Goods Issue: "When a goods issue is posted
the system carries out the following tasks: [...] It creates a material document. [...] If the movement is relevant for accounting
it creates an accounting document. [...] It updates the stock value and the consumption values in the material master record." This confirms the creation of an accounting document (A) and the update (reduction) of inventory value (B).
Source: SAP Help Portal
SAP S/4HANA Cloud
Product Assistance - "Goods Issue".
2. SAP Help Portal
SAP S/4HANA
Integration of Materials Management and Financial Accounting: "A goods issue for a sales order reduces warehouse stock. The value of the material issued is posted to the cost of goods sold. This transaction is posted in Financial Accounting and Controlling." This statement explicitly links the goods issue to a reduction in stock and the creation of a financial posting (accounting document).
Source: SAP Help Portal
SAP S/4HANA
Product Assistance - "Integration of Materials Management and Financial Accounting".
3. SAP Learning Hub
Course S4F20 - Processes in Management Accounting in SAP S/4HANA: The course materials detail the integration between logistics modules (like MM) and Financials (FI/CO). The goods issue transaction is presented as a key integration point where a material movement automatically triggers a financial posting
debiting Cost of Goods Sold and crediting the Inventory account
thus reducing its value.
Source: SAP Learning Hub
S4F20
Unit on "Integration with Logistics".