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  • Hey John,

    I made some adjustments based on your reply but the fields are still not populating. The field group is created with no fields, if you happen to have any other ideas that I could try.

    In functions.php – This seems fine and is registering the group for the post type.

    function test_update_acf_field_group() {
            'key' => 'group_5',
            'title' => 'Product Data',
            'fields' => array(),
            'location' => array(
                        'param' => 'post_type',
                        'operator' => '==',
                        'value' => 'product',
    add_action('init', 'test_update_acf_field_group');

    This part is in a template file that I have assigned to a page and refresh to execute the code quickly for testing (which is initially why I thought maybe the template is loading at the wrong time to add the fields). I have echoed out the variables and copy/pasted the responses as comments so you can see the actual values coming out in the first run through that loop.

    $count = 1;
    foreach( $row as $r ){
        echo $count;  // shows 1
        echo $r;      // shows Part_Number
            'key' => 'field_' . $count,
            'label' => $r,
            'name' => $r,
            'type' => 'text',
            'parent' => 'group_5'

    Thanks again for your help!