Hello! I've read the first post, and several pages of responses (though I'd be crazy to try to read all 131 pages), and I haven't seen this listed, so sorry if I am repeating information, but hopefully this can help some people!
There are 2 more ways I was able to access my 12-digit confirmation number:
1) After your 60-day window has passed, on the MDE website, go to My Reservations. There should be a button that says "Online Check-In" or, if you have already checked in, then there will be a link that says "Modify Check-in." It has already been suggested to hover your mouse over the button/link to see the 12-digit number in the url (for me the url appears in the lower left corner of the screen). If that does not work for you, you can print the page. Then, in the place of the button/link, it shows the url, and the number is printed there. The other method that worked for me is to right-click the button/link, and select "copy link address." Then paste it anywhere- in the address bar, or into a Word document, etc. and the number should show up at the end of the url.
2) The other way I was able to access my confirmation number, before the 60-day mark, was by calling Disney. The short answer is, be direct and tell them that you just want the number. I know others have tried and been told they must be invited, but if that happens, try telling the CM that you understand but you would like to have the number anyway. Be sure to tell them it needs to be a 12-digit number without letters. You will probably need to verify your email address used for log-in, as well as your street address.
Specifically, what happened for me is that I called the Website Support number (407) 939-4357 for another reason, but the CM asked me "is there anything else I can help you with?" and I said that yes, actually, there was. I asked for the confirmation number and she gave the alpha-numerical one (aka the wrong one). I said I was looking for the 12-digit one with only numbers. She asked me why I wanted it (a little suspiciously). I told her the truth, that I wanted to use it to make a Be Our Guest FP+ reservation, and I knew I could get the number in other ways later (such as luggage tags) but that I just wanted to know it and could she please just tell me, if she was able? I had to confirm my street address (I had already given her my email address earlier in the conversation so she could log into my account), but then she did give it to me.
I also wanted to share some of my story, which may help others down the line, particularly people who have multiple resort reservations (that is, a large party in different hotel rooms):
I am a single woman traveling with a family of 4. In order to explain this, let's pretend my name is Elizabeth Smith, and the family I am traveling with is Mark Jones, Kayla Jones, and their children Samantha Jones and Charles Jones. We have two separate hotel room reservations at Pop Century- one reservation for just me, and the other reservation for the family. We are all linked as Family & Friends on the MDE site. We have one Memory Maker purchased. We are going to Disney in less than 60 days but more than 30 (so, I haven't actually made the Be Our Guest reservations yet).
Before the 60-day mark, I went to the Be Our Guest FP+ reservation site, just to check it out. I entered my email and password for the MDE site, then I entered the 12-digit Memory Maker number. Let's pretend that number is 442411111111. My name, Elizabeth Smith, showed up, and I logged in. I got to the page with the option to "Select or Replace" and I chose that option. I chose the day we wanted, and got to the page for "Select Party Members" I was confused to find that my name, Elizabeth Smith, was listed along with Kayla Jones, Samantha Jones and Charles Jones, but there was no Mark Jones. I figured that Mark Jones must be under a separate reservation number. I knew I had plenty of time, so I just waited until after the 60-day mark, then I checked in online, and got the 12-digit number from that (by printing the My Reservations page and seeing the number in the url). Let's say that number is 442422222222. This is where it gets confusing. On the MDE website, I was only able to do online check-in for myself, not for the Jones family. However, once they had checked in online, I was able to see both of our 12-digit numbers. The Memory Maker number was the same as the 12-digit number that is linked to their resort reservation (442411111111), but my resort reservation has a different 12-digit number (442422222222). Once I had both numbers, I returned to the Be Our Guest website. I entered Mark Jones' email and his password that he uses for the MDE site. I then entered 44242222222, the number which is connected to my resort reservation, and which I had not already used. Once I entered the number, the name Mark Jones appeared in the boxes below (one box for first name, another box for last name). I tried to continue, but the page said the guest was already registered. I had to erase his name, and enter my name, Elizabeth Smith. Then I was able to get into the site. However, when I go to "Select or Replace," then Mark Jones is the only person who shows up under "Select Party Members." When I use my own login information (email and MDE password), it still shows me, Kayla, Samantha and Charles. The key bit of information here is that you have to try all sorts of weird things and it doesn't always work the way you think it will. I saw a post on this thread where someone said you should try the name of every person in your party, and I agree. In the end, what worked is that I used my name, my login information and the Jones' family confirmation number to get to the reservation page for me and 3 members of the family, then I used my name, the Jones' family login information and my confirmation number to get to the reservation page for 1 member of the Jones family. There doesn't seem to be any pattern to it! The only thing I can think of is that it has something to do with Memory Maker. Maybe I am linked with 3 members of the Jones family? I don't know how Memory Maker works, so I can't speculate too much in that area. Hopefully, after I get my FP+ reservations I will remember to come back and tell you all how it went.
I don't know how this works, but for what it's worth, anyone has my permission to copy, quote, and/or paraphrase this in order to help others figure out the system. Especially paraphrase, because I know I'm really wordy and someone else can probably say the same thing much more succinctly.
TL&DR: If you have a group with separate resort reservations and you are having difficulties logging in to the Be Our Guest site, try different combinations of names of everyone in your party, confirmation numbers, and MDE login information (email and password).
We do have a dinner ADR there but would prefer to do lunch.
