I had a similar situation last year. We had a week in a 2-bedroom at Saratoga Springs. Two sets of friends were splitting the time in the 2nd bedroom (one for 4 nights, the other for 3 nights). Everyone was on the reservation, so to the reservation system it was as if all 6 of us were in the room the entire time.
The second set of friends decided to arrive two days early and just get a cheap room at one of the All-Stars. After thinking that there might be a problem with the system seeing someone in two separate rooms at the same time (because they'd both be linked to the same MDE profile) I called the MDE Help Desk, and the lady there confirmed that the system wouldn't like it, and there may be issues while the second set of friends were there.
Instead, they created a separate profile for the two nights at All-Stars using a work email address, and just lived with two separate MagicBands those first couple days (because they'd already linked their tickets to the profile that the SSR reservation was linked to, though they could've just used the physical ticket card if they wanted)
And I guess there's also the question of just why you have reservations at two different hotels... (If I were to hazard a guess, since you mention the AP, you are trying to use your AP to get a discount for friends on a room you won't be staying in?)
-Rob