Removes an (unprinted) consignment item and returns any labels to the pool.
ConsignmentItemID - The itemID of the consignment item (see List Consignments)
A data structure like so:
{
'result': {
'Success': true,
'ConsignmentItemID': '1620683'
}
}
https://api.fastway.org/v2/fastlabel/removeconsignmentitem?ConsignmentItemID=1&api_key=fc02f7481690e29cc62b6f816fb8cfde