I am trying to create a metabox input field in a custom post type and it does not work even if I followed the instructions the best I could. I am not a PHP dev so I guess it could be just a small thing that is missing or it is wrong.
By not working I mean, I does not show at all in the WP UI.
Here is the code:
The other issue is that the Tag is not named even if the function is there.
Thank you in advance. Eri