Originally Posted by ReelChief
Re your comments Gardyloo and Serfty.
What really surprised me was that BA-MRU was not able to book even the first segment starting in MRU-- it can't get much more direct than that! And it would have been nice if there is no "A" inventory for the date I suggested (even though it is showing on Expert Flyer) if they had suggested some proximate alternatives. It may be that EF is not reliable as to available inventory- especially for "exotic" locations but in the past I have found it to be quite reliable.
I'm an outsider to the subject of the various CRS's and how they're linked, but "poorly" seems to be a reasonable adjective. For example, I wanted to use LA801 between AKL and SYD in A. The AONE4 was issued by Cathay, the flight was showing A4 on EF, but Cathay couldn't get seats despite messaging Lan a couple of times. So I called Lan from North America. Their agent firstly had to be convinced that they even flew that segment - she clearly couldn't even see it in her CRS. When I insisted, she asked a supervisor, and eventually came back with the seats. So the fact that a BA outpost can't see seats on a BA flight might not be so astonishing.