Q: I tried to sign into Apple ID but it says X-AMD-action_message

Hello, Summer joiner.  

Thank you for visiting Apple Support Communities.  

I understand that you are receiving an error when signing into the iTunes and App Store on your iPad.  I would first make sure that your date and time are correct.  Take a look at the highlighted section below.  

If you can't connect to the iTunes Store on your iPhone, iPad, or iPod touch:

1. Make sure that your date, time, and time zone are correct. Tap Settings > General > Date & Time.
   Time Zone might list another city in your time zone.
2. Make sure that your iOS software is up to date. Tap Settings > General > Software Update or connect your iOS device to iTunes and click Check for Update on your device's Summary page.

Can't connect to the iTunes Store

If the issue persists, try logging out of all services that use your Apple ID and then log back in with your Apple ID credentials.  

Sign in with a different Apple ID on your iPhone, iPad, or iPod touch

Cheers