RCA / CFMU
Word of warning to anyone flight-planning with RPLs. We got caught out recently by sending a CHG message for a reroute ( which was ACKd by BRU ) before the RPL automatically generated.
When it did generate at IOBT-20hrs, it overrode the CHG we'd sent.
Obvious to experienced bods / bodesses maybe, but can kick you in the teeth if you are unaware !