Setting tracking information without TransactionID
Hello all, We use Ship Station to ship our orders and it can't seem to upload tracking information for combined invoice orders that are shipped in multiple packages. So we have been looking into using the API to upload these but we have found that the CompleteSale call requires the transactionID to set the tracking at the item level. Ship Station only has the ItemID and OrderID so we are not able to provide the transactionID. Has anyone on here figured out how to work around this? Is there some other call we could use first to look up the transaction ID or something like that?