Where to place a custom hook for a singular template filter?

Have you tried the_content?
If that’s not a fit — can you explain what you’re trying to do?

Hi @pdclark
In fact, what I’m trying to achieve is to extend and change the pod behaviour, for instance, a function that checks if a number given to an item already exists, some validations but not only.
Thanks

Hi @raulmagdalena

See and

The first can be used to check the value of a meta field, such as a number, and the second can be used to change display of the post content on a singular template.

Thanks @pdclark

Where to set the code? it is a good approach create my own plugin to extend my pods behaviour?, i mean, as far as i know it is not good idea to add any file to the pods pluigin, as it will be deleted/changed on any pods plugin update

thanks again

Your own plugin outside the Pods plugin is fine.
Just add a plugin header: