All,
 
We had an error where the Shipper No: (which should be in the 2000 range) showed up as the same number as the Invoice number (which is in the 40000 range).
 
This has only happened once so far and a check of the defaults showed everything ok.  
 
Is there a way that someone could have done this by mistake, or was it a system glitch?
 
Thanks,
 
George