Your Apple ID account is also attached to other iTunes providers. You will need to create a new user on iTunes Connect to submit content to this account. Please contact us if you have questions or need help.

Your Apple ID account is also attached to other iTunes providers. You will need to create a new user on iTunes Connect to submit content to this account. Please contact us if you have questions or need help.

当开发者账号被添加到其他项目参加TestFlight外测，再使用此账号通过Application Loader向苹果上传TestFlight开发包时(代维护)，会出现此错误提示，大致意思是此ID已被关联到其他iTunes上传身份。此时，可借用一个普通的Apple ID，将此ID添加入TestFlight外测，然后使用此ID上传开发包。由于此ID没有发布权限，所以改用那个开发者账号进行版本发布，问题解决。