The effects of a goods issue posting in SAP S/4HANA Cloud Public Edition include the posting of an accounting document and a reduction in the inventory value. The accounting document reflects the financial impact of the goods leaving the inventory, capturing costs and adjusting the inventory account. The reduction in inventory value corresponds to the physical outflow of goods, accurately reflecting the current stock levels.
References:
SAP S/4HANA Cloud documentation on Inventory Management
Best practices for Goods Issue processes in SAP