As you will know this season there will be no extra time if cup results are level at the end of normal time. When that happens, the result will be decided by the taking of penalties.
Following an enquiry to the Full-Time team at the FA, we have been as advised as follows regarding the sending in of cup results by SMS
Currently you cannot put 0 mins for Extra Time in Full Time for Cups.
Texts will remain as normal with a requirement for normal time score, extra time score and penalty scores to be entered.
Obviously, the extra time score will be the same as the normal time score.