While you can't manually edit the status of a shipment, you can perform actions that could change the status.
For example, if a shipment is in waiting, approving the shipment will book the shipment in and change the status to complete.
For more on statuses, see here: Shiptheory Statuses Explained
If you encounter any issues, please feel free to contact our support team. You can call us on 0117 403 4313 (UK) / +1 (629) 666-6726 (US) or reach us online here.