FlashDance

Got overexcited at the possibility of using TSA-Pre on an upcoming flight and mistyped my PASSID number. Realized the mistake the next day, called customer service, and they corrected it in my booking. At that time I also then entered my PASSID number in my FF profile area.

When does this data get sent to the TSA? If it is at time of booking, then I'm screwed unless changing the PASSID in the booking causes the data to be re-transmitted.

Any insight on the deeper workings of the process?

Thanks!