Filter primary categories / product categories list

filter-primary-categories-product-categories-list.php

function sp_primary_category_list($cats) {
    //default
    //$cats = get_categories();

    // global $typenow;
    // global $post;
    // if ('product' == $typenow) {
    //     $cats = get_the_terms($post_id, 'product_cat');
    // }

    return $cats;
}
add_filter('seopress_primary_category_list', 'sp_primary_category_list');