Create a post from a Form submission

What’s the right way to create a new record in a CPT using a Form. I’ve setup the following actions:

  • The post is created
  • But the various meta fields are empty

I read the docs and they don’t give many clues. I could try ACF Post Field Update but the dropdown for Field is empty.

I wish the docs for Form were better and included worked examples. Right now using forms is a hit and miss affair and wasting your time on support tickets IMO.