Post Max Cap Amount

Currently it is not possible to add such validator in WPAdverts i am afraid.

So is it impossible to make a validator code that will do just that in the WPAdverts?

If i cannot make a code is there anyway i can have a parenthesis saying (max posting price cannot exceed $20) next to the Price feature?

It is possible to write such validator, but this is right now rather complex, and beyond the free support offered here, sorry.

To add a note below the price field you can add this code to your theme functions.php file

add_filter( "adverts_form_load", "customize_price_note" );

function customize_price_note( $form ) {
  if( $form['name'] != "advert" ) {
    return $form;
  }

  foreach( $form["field"] as $key => $field ) {
    if( $field["name"] == "adverts_price" ) {
        $form["field"][$key]["placeholder"] = "max posting price cannot exceed $20";
    }
  }

  return $form;
}

That is awesome Greg, thank you so much for your help and time I really appreciate it!

I understand that the validator I was asking for initially is complex and beyond the free support, however when my website is up and gains more traffic I will be willing to pay you for something like that if you are interested.

Thanks again for all your help!