Removes a manifest and all the consignments in it. Note: You can only do this on open manifests, and only unprinted consignments will be removed. The labels will be returned to your stock.
ManifestID - The ID (from List Manifests) of the manifest to remove.
A data structure like:
{ 'result': { 'ManifestID': '1', 'Success': true } }
https://farmapi.fastway.org/v6/fastlabel/removemanifest?ManifestID=1&api_key=YOUR_API_KEY