You'll need to open a case here to potentially do this. However, if it can be done, the account that is merged will lose all progress on all EA games. This includes any Apex Legends characters, Ultimate Teams, Battlefield soldiers, etc.
@Looneyshadowdog This is being looked into, actually!
While he mentions it's likely still a ways off, this is something the Game Director has commented on over on Reddit: https://www.reddit.com/r/apexlegends/comments/ldfgmq/respawn_here_we_just_shipped_season_8_mayhem_as...
I wouldn't ever say something is not possible, but it's certainly more challenging to add cross-progression to a game that's been out for 2 years. A lot of people have accounts on various platforms and trying to figure out the best way to pick or merge the account data is a challenge with many pros and cons. We're certainly looking into cross-progression and it's something that I think would be great for the game, but it's still a ways off most likely.
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