For the original copy, the day would not be 27 Jul 2015 anymore, it will automatically change to 31st July 2015. The date there is just TEMPOARY, as your company needs the draft to look at the details. However, it’s IMPOSSIB LE to generate the BL draft dated 31st July, 2015 since today is just 28th July 2015.
For the vessel, WAN HAI 273 S077, we stated in FE and BL, it is fixed to depart in SZ port on 31st July 2015. So it’s impossible to change the date of FE to 27. Please understand and try to explain it to your import department with many thanks.