Want to understand how the weights for your shipments are calculated then this article shows this.
Automate will not determine/calculate the order weight automatically when booking shipments. Where your ERP/WMS is integrated with 7bridges then the order weight will be supplied when the order and movement demand data is published to us via the the API.
The package weight can be defined in two ways: either via the API or manually through the user interface (UI). Once the weight is entered, it is important to note that the carrier is responsible for calculating and using either the volumetric weight or the actual weight, for billing purposes.
Our system sends both the weight and the dimensions of the package to the carrier. The carrier then applies their specific rules to determine whether the volumetric weight or the actual weight will be used for billing.