Description:
This error appears when the shipping label is not fetched from marketplace or integrated carrier with WMS even after multiple requests. This may be during high pick operation which leads to slowness in API or wrong carrier configurations.
Action required from your end
1. Refetch shipping label: Click on the Fetch Shipping Label button under the missing label tab of packing state.
2. Ensure correct carrier settings: To check carrier setting navigate to Warehouse Setup > Carrier Module. There's a case when carrier only support for packages below 30kg, however, the net weight of package indicated 40kg during packing which led to error in generating shipping label.
We hope the details above were helpful for you. Please feel free to share with us if require further assistance and will be happy to take it up.