Tom, my boarding passes clearly showed my BA number but there was still issues. My Avios have yet to be credited for the PVG-KUL leg even though BA tell me they should be in soon. Keep a close eye on them.
rlcwong, it wasn’t me but I gather many are having the same problem (it is always a no show or the miles have already be credited to their own programme). I guess there will always be teething problems but you would think the new kid on the block would be wanting to get it right.