Pickup api generates invalid payload when parcels_count is used and not tracking_numbers due to not enough information about the parcels themselves

[ChrisNolan]

For fedex at least, it generates this

  "totalWeight": {
    "units": "LB",
    "value": 0
  }

which when used with 'FDXG' (i.e. Ground) this results in a

code":"SYSTEM.GENERIC.ERROR","details":{},"level":"error","message":"We are unable to process your request at the moment. Please try again later or contact FedEx Customer Service."

As noted above, if tracking numbers are sent, it pulls the correct parcel information from the system.

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How would you handle this?

Expose some 'parcel' information to the shipment api? just give a raw weight (but that assumes it is only a single parcel so...)