This is exactly what I've done with my just-started RTW
The dates I wanted for the last three flights on the itinerary are too far in the future for the GDS that AA uses (sabre?). So dummy dates have been entered for them.
I will change those dates, for free, closer to the time I want to fly (October 2023)

That is what the AA RTW Agent told me.

The RTW ticket I have just started (and which I purchased from AA) has an AA transatlantic flight (AA codeshare on Royal Air Maroc flight) and that was all I needed to have for AA to agree to ticket.

The AAgents have always talked about the requirement being for an "over water flight". I have always assumed that to mean either a transatlantic or a transpacific flight. I don't know if other inter-continental flights would be acceptable, for example North to South America.

Thank-you jerry a. laska and pandaperth. With that, the last question. If my e-ticket has me flying out of an airport and there are no seats available with the airline it is booked for, can I switch to another OneWorld airline that has available seats(like the good ole days)?

On my recently booked DONE4 purchased through AA Dallas the agent waived the requirement for an over the water sector on AA as a code share…..surprised but that’s what happened and subsequently ticked and reticketed as future sectors came into date range.

Just to clarify, I believe AA insists that there be a trans-ocean flight on their code. I don't think they care whose metal (and I'm sure they would refuse to book another carrier's code on their metal).

Can you clarify? I'm not sure what you mean by "there are no seats available with the airline it is booked for" because being booked means you have a confirmed and ticketed reservation for the flight.

You got lucky! Enjoy.

That is in reference to moving the original booking date forward. Example... I am booked on JAL to depart on Dec. 12th. I want to take an earlier flight leaving on Dec 5th. JAL is booked. However, Malaysia has seats open that day. The question is can I switch to another OneWorld airline, like the Good Ole days?

Thanks for clarifying. Yes, date/time/airline changes remain free. As long as the ticketed points remain the same (no change to routing), it's the same as the old paper ticket days. (Some airlines or agencies charge their own service fee.)

Dear OW community,
I am contemplating to book my first ever RTW ticket in biz. I was debating *A vs OW, but am leaning towards OW. The only thing certain is that I want to pass through Japan, the US West coast (home) and Central Europe (second home).
I started to play around a little with the route planner on the OW website, which I do not find overly intuitive.

Is there a guide anywhere on FT (or elsewhere) how to tackle things for a newbie?

If possible at all I would like to book using my US Amex plat, in order to earn 5x MR (either with an airline directly or through Amex Travel).

What are currently the cheapest places to start? It appears to me that Japan is reasonable (at the current exchange rates). Is there a European starting point in a similar price range?

EDIT: I found the "Explorer User Guide" here on FT.
EDIT2: It appears that ex-OSL and ex-BUD are in a similar price range as TYO?

I haven't checked the latest exchange rates, but I believe the current cheapest starting places are:

Norway, Hungary, Japan, Pakistan

for a DONE4 (4-continent business class) their base fares are around USD5,500

You can definitely pay using your AmEx Plat card for the 5x points and travel benefits. You can book using the web site if you're lucky, or directly with the first airline in your proposed booking, or with any other OneWorld airline, although they may insist on their flight code being used for a long-haul flight in the booking. You can also book with a travel agent. I have an AONE4 starting in Tokyo that I'm trying to ticket that AmEx Platinum Travel is working on; they sent it to BA to be priced five days ago and still haven't gotten a price, but if ours is simpler they may be able to book it quicker. For a business class RTW, I would try to get Alaska Airlines to book it, as they may charge lower fuel surcharges.

A few weeks ago I spoke with an AS reservations person who told me that they had been briefed on how to book Oneworld RTWs, but she herself hadn't done one yet. I certainly think it's worth a phone call.

Thanks, anabolism and Gardyloo, for the excellent suggestion re: booking with AS. My personal experience with AS has been can-do, customer-centered service, which could be very useful when dealing with ticketing and changes (expected and unexpected). I'm hoping to ticket my DONE4 ex-BUD pretty soon for travel mid-Spring and will share what I learn about fuel surcharges. It will also be interesting to see how willing they are to construct a complex itinerary that may only include a single AS flight but also includes many requests for specific codeshares on other carriers.

If I route CPT-DOH-North America-ASIA-CPT/JNB it would be a DONE3? And if anyone has a current fare I’d appreciate it.