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Hi. I transfered an app that uses apple login. but, I didn't do the Transferring your apps and users to another team process, So, I'm working on Bringing new apps and users into your team. Is it possible to transfer a user with just Bringing new apps and users into your team.? I'm having trouble with the part where I get the access_token from the Bringing new apps and users into your team. action. I've only entered it with the NEW TEAM's information. POST /auth/token HTTP/1.1 Host: appleid.apple.com Content-Type: application/x-www-form-urlencoded grant_type=client_credentials&scope=user.migration&client_id={client_id}&client_secret={client_secret} client_id : APP bundle ID client_secret : Created by referencing [Create the client secret] in Generate and validate tokens. require 'jwt' key_file = 'key.p8' team_id = 'TeamID' client_id = 'AppID' key_id = 'KeyID' ecdsa_key = OpenSSL::PKey::EC.new IO.read key_file headers = { 'kid' => key_id } claims = { 'iss' => team_id, 'iat' => Time.now.to_i, 'exp' => Time.now.to_i + 86400*180, 'aud' => 'https://appleid.apple.com', 'sub' => client_id, } token = JWT.encode claims, ecdsa_key, 'ES256', headers puts token POST /auth/token HTTP/1.1 Host: appleid.apple.com Content-Type: application/x-www-form-urlencoded grant_type=client_credentials&scope=user.migration&client_id={client_id}&client_secret={client_secret} { "error": "invalid_client" } Thank you.