Just did this last week, and will again this week.

FAKE means you did something different, but the pay remains the same. I think of it as a marker for Payroll.

First time I tried this, she approved my deviation and deadhead, but cancelled the hotel at the start of the trip. Ooops; and I didn't notice it until I got to my layover. Called back; someone else fixed it.

On the back end, I didn't want the hotel. They cancelled it for me.

Both say FAKE in the pairing, but each time they mod'd it, the last letter in my pairing ID changed (A, B, C).

I thought you started with Pilot Service Center on the back end, schedules on the front. Wrong, at least last week. Schedules first (both front and back end) to make the FAKE. Then, PSC to approve the company biz travel.