The Arrival Date functionality is used in the Reserved Material area, with logic that differs from the determination in PM Service Orders. Detailed information about the underlying logic can be found in the Arrival date section. A dedicated report is available in transaction /PACG/ECM_LO_ARRI to run this functionality for SAP S4/HANA Service Orders:
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Van stock and DC scenario
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Confirmation lines from purchase order. To enable this option, the configuration /pacg/ecm_pconf must be maintained
Purchase order - delivery date from schedule lines
Purchase requisition - requested delivery date
Requested end date at the material’s item level