Hi!
I’d like to validate a field on saving the post. At the moment we’re using custom post statuses, roles etc. and the required fields are only validated when publishing or scheduling a post. This filter looks like it’s doing what I’d like to do, but apparently only in ACF5, for which I can not find the beta version anymore. Is there a possibility to validate the field while saving a post?
Cheers
edit: Is this available in ACF Pro?