You appear to be trying to use the CF7 form to send data to our plugin for it to give results? Is that correct?

Hi Arthur

It looks like contact form 7 inherits the vars from our searches, this is probably for compatibility with other plugins but in this case it seems to have an adverse effect.

You can modify the CF7 action urls, and remove the vars you don’t want, like this:

add_filter('wpcf7_form_action_url', 'wpcf7_custom_form_action_url');

function wpcf7_custom_form_action_url($url){
	$url = remove_query_arg( "_sfm_sortingtesting", $url );
	$url = remove_query_arg( "_sfm_min_val", $url );
    return $url;
}

In this case, in my tests, I remove _sfm_sortingtesting and _sfm_min_val from the CF7 action URLs.

Let me know how you get on.

Thanks