Originally Posted by dvs7310

If you're inputting everything manually in the OW tool to get that KTM transit (as I'm pretty sure the OW tool would never offer that as a connection) then yes it'll count it as a stopover even if under 24h. You'd have to ticket that manually with AA, JL or BA but it's not invalid if under 24h.

Having said that you have too many segments in Asia. (continent of origin) KTM-KUL-CGK-HKG-CTS-HND is 5 segments and you're allowed only 4. You'd need to end your itinerary in CTS for two reasons, first is the 4 segment limit in Asia plus you can't return to the country of origin until the end of your itinerary (except North America). Generally that's fine though, the dometic ticket on JL is usually 15-20,000 JPY in Class J CTS to TYO, I want to say around 25,000 JPY in F. So if you eliminate your CTS-HND then you might get the tool to ticket as that would mean it'd be looking at KTM and CGK as stopovers and CTS as the end point.