If you are facing the error:
COMMODITYWEIGHT.GREATERTHAN.PACKAGEWEIGHT
This can be caused by having products with a weight containing 3 decimal places.
To resolve this, either update the weight in your sales channel, and "retry" the order, or change the weight in Shiptheory

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.