Prevent saving post on publishing

  • Hi,

    When publishing a post (or saving a draft) I run a hook on ‘save_post’ to add a meta.

    I want to prevent the actual post from being saved if any errors occur when running save_post. I’ve noticed there are other hooks I can use, like ‘pre_post_update’ but I wouldn’t know how to prevent a post from being saved.

    How can I accomplish this?

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