Originally Posted by nux

I mean that BA.com shows availability which is not really there, and if you try to book it through BA.com it will give you an error. There have been occasional reports of this happening with CX and LA award searches on BA.com, as well as issues with married and connecting segments showing the higher availability of the two rather than the lower.

The other explanation is that the AAgent could not find availability that is there. The OP can try the following: http://help.kvstool.com/#AgentSaysNo

I have not seen any reports of oneworld carriers blocking other carrier award inventory, or oneworld carriers only releasing awards selectively to other oneworld carriers.

Originally Posted by jerry a. laska

When searching ba.com for reward flights on CX that involve connecting flights (for example, TPE-HKG-LHR) ba.com often displays the availability for the short haul flight (usually greater) as also being available for the long haul flight (usually less). When you try to book it fails. If you search for the two flights individually you often discover the true availability for the long haul sector and that ba.com is displaying the availability for the short haul as also being available for the long haul sector.