We've followed these exact instructions to add a "Tracking Number" field to our invoice template. We manually enter the tracking number to each invoice before sending to customers. We can't seem to locate the tracking field data in any report. Specifically following the instructions using the "Sales by Customer Detail" report. We can get the filed to show up on the report but there is no data showing, even though the tracking number is on our invoice. Also wondering why the filed shows up as "Other" on the report. We've named it "Tracking Field".