To find your Player ID and PIN in Zynga Poker:

Tap the gear wheel icon in the lower right corner of the screen.

 

Tap the Account Info button.

 

The number listed under Zynga ID is your UID/ZID for Mobile Poker.

Click on the Get Data Request Pin button to view the PIN.

You will now be able to see your Player ID and PIN.

Note: You can also send an email privacy@zynga.com to make a Personal Data Request.