F1 Help Rule 11 - FIFO Lot / Expiry Date
Identify all Tracking IDs for the Sales Order Lines Stock code and Warehouse.
Sort the Tracking IDs by the Lot Expiry date
Reserve from these Tracking IDs in DATE order (results from sort – “oldest” first).
The picking strategies are set in WAREHOUSE SETTINGS under PICKING_SALES_ALLOCATION > AUTO_RESERVATION_RULE