Hi Elliot
Thank you for your response.
Yep I am using the post_object field and it’s set up as a single select field.
get_field gives me the value of the post I need but my question is how do I query with it? E.g. What would the meta_key be if I want to use it in WP_Query (get all posts with the associated post object ID of X)?
I have tried the meta query in this tutorial but it doesn’t seem to work for me: http://www.advancedcustomfields.com/resources/tutorials/querying-relationship-fields/
Thanks again,
Chris