GetTrackingNumber Method
Generates a Delivery Confirmation Number or a Signature Confirmation Number that can be applied to user-generated labels..
Syntax
[VB.NET] Public Function GetTrackingNumber() As String
[C#] public string GetTrackingNumber();
Remarks
Unlike GetPackageLabel, this method does not actually return a label, but rather returns only a TrackingNumber. This is useful if you have your own Postnet barcode generating software.
Since only the TrackingNumber itself is requested, this method requires a much smaller subset of properties. Any property not listed below will be ignored for this method call.
Required Properties:
Optional Properties: This method will return the TrackingNumber if it is successful.