Users can log in to the OLISS Web side, and operate in "Crew Cost → Crew Contract" interface ， you can find the target crew through the filter bar, select "Unsigned" contract crew in "Status", click "..." behind the target crew, select "Add Contract", jump to the "Add Crew Contract" interface, select the vessel, rank, start and end dates, fill in the contract number, warning days, set Five Insurances and Housing Fund setting, upload the contract attachment, and click "Confirm"