Wordpress SEO YOast Form

You will need to find out the meta_key for each of the SEO items (Keyword, SEO Title and Meta Description) then add custom fields to your form, and use these meta_key(s) as the Custom Field Names in your form. That will store the user submitted values in the postmeta table, in a format that the Yoast SEO plugin will understand.

The link you posted is exactly how you need to do it, you just need the unique Yoast SEO meta keys and this will work fine.

What I would do is create a post and save all those values for the Yoast SEO plugin. Then take a look at the database directly, and view the postmeta records which were stored for that post. You should see all Yoast SEO items saved there, and you will have the meta key names you need. If the information is stored elsewhere, you may need to look in other tables. You will need a tool like phpMyAdmin to view the MySQL database directly.

If you don't want to go that route, you could probably look through the Yoast SEO plugin files and find the meta key names.

Good job. Those absolutely look like the right ones. Use those as the "Custom Field Names" in the form fields where you accept the user input. That should take care of it. Follow the instructions at the first topic URL you posted.

http://www.gravityhelp.com/forums/topic/custom-document-title-meta-description-tags-question

I just took a look at the database (wp_postmeta table) and see that Yoast adds to those meta keys. These are the correct ones:

_yoast_wpseo_metadesc
_yoast_wpseo_title
_yoast_wpseo_desc

Add "_yoast_" to the beginning of what you have now and I think this will work OK. Be sure to use the leading underscore, which hides it in drop downs where custom fields are in use.

Outstanding. Thanks for the update.