Cost Codes/Department Codes

As we are doing some end of month reporting we ran into a couple of issues regarding Cost Codes. When we fulfill orders through Stamps alone, we as a company put in Cost Codes so we can track our finances. I have noticed that when I fulfill an order through ShipStation that it gets "pushed over" through Stamps. Unfortunately, I cannot find a Cost Code on the ShipStation platform in order for it to communicate with Stamps. It would be very beneficial for ShipStation to include this feature. All of this is in order for us to keep track of where our money is being placed and for reporting.