Users log in to the OLISS Web side, click in sequence to enter the "Purchasing Management → Inquiry Management" interface, which defaults to the spare parts interface. Click " Approving" in the "Status" drop-down menu, click anywhere on the target documentation to enter the details page. On the "Selected Solutions" interface, click the "One-click Expand All/One-click Collapse All" icon after the supplier name in the list column. When in the "One-click Expand All" state, all suppliers are displayed. On the left side of the supplier name field column, the supplier's quotation solutions can be viewed.