Answer 1

You get it immediately after beginning a new game. It is part of your trainer card.

Comments

You did mean the one in the game, right?

Answer 2

In the video game you get it by beginning a game and its in your trainer card. there are two IDs : A ID that you can see in your Trainer card and another is A Secret ID which you can only see in the trainer card by using AR codes or something..

Comments

How does this relate to the question itself?

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He said how u get ur id so you get on your trainer card and there is a secret one too.

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He only asked for the digital ID not those ones... So the extra info is usless...