Is there any Load Optimization capability?

Hello, Can we make a request to your service using trucks and their capacities as tonnage beside shipments (lat,lon info)? Do you support this kind of requests ? We need route optimization with both coordinates and trucks. We do not need only route (waypoint) optimization, we also need load optimization. How can we get that do you have any example request ? Thank you in advance.

Our current version of the API does not support capacity constraints in multiple rounds.

However, the new API v2 does. Here is another thread on the same subject.