Originally Posted by FlyerGoldII

Yes, this time I defaulted on the stopover location and stopover duration. It worked.
So what does it mean that one leaves the stopover location and stopover duration, as is, in the boxes?

By the way, it seems that at least for the transatlantic flights - at least for PY or J, only AC flight options show up for dynamic pricing.
No options for UA or LH or LX in these cabins.