Apple Rejection For Third Party Sign Up

Question

Apple Review team rejected the Application with the reason

\"We noticed that your app uses a third-party login service but does not offer Sign in with Apple.

Answer 1

Today morning my app also got rejected because of the same reason but I was not using any third party sign up.

After rejection, I realised that in side menu under login button, I have 5 social media buttons for their respective social media page links so I replied to Resolution Center that I am using regular email based register and login. Also, I shared the screenshot of both screens (Login & Register). After 7-8 hours the status changed to 'In Review' and after next 10 minutes Apple approved and it goes live.