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Product XML Feeds: Developer Hooks and Filters Reference

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Product XML Feeds Manager for WooCommerce exposes a small, focused set of filters and actions so you can change gating, override per-feed values, extend the [alg_product_function] allow-list, and hook the feed-generation lifecycle in code, without editing plugin files.

All option ids referenced below live under WPFactory > Product XML Feeds (also reachable at WooCommerce > Settings > Product XML Feeds). Per-feed options carry the feed number as a suffix, for example alg_products_xml_header_1.

Filters #

Filter Passed Purpose
alg_wc_product_xml_feeds_settings $value, $type The Pro gating filter. In Pro it returns an empty value (unlocking a field); in Free it returns the passed disabled/readonly array. Used on the feed count cap and every Pro option.
alg_wc_product_xml_feeds_values $value, $type, $file_num Resolves per-feed values by $type (for example total_number, update_interval, stock_status, min_price, max_price, catalog_visibility, product_type_include, custom_meta_incl). Filter it to override a value in code.
alg_wc_product_xml_feeds_shortcode_allowed_functions $functions (array) The allow-list of WC_Product methods that [alg_product_function function="..."] may call. Add a method name to expose it.
alg_allowed_custom_functions $functions (array) The allow-list for the global custom_function shortcode attribute. Only listed, existing functions are called on the shortcode result.
alg_shortcodes_list $shortcodes (array) The registered shortcode names. Useful for tooling that lists available tags.

Actions #

Hook Fires
alg_wc_product_xml_feeds_create_products_xml_hook_{n} The scheduled (WP-Cron) event for feed {n}. It runs create_products_xml( $file_num ) on the selected interval. You can trigger or reschedule it programmatically.

Generating a feed programmatically #

Two entry points regenerate a feed on demand:

  • Admin URL: ?alg_create_products_xml={n} with a valid _wpnonce (nonce action alg_create_products_xml_nonce). Requires the manage_woocommerce capability. This is what the Create now button uses.
  • External AJAX action: admin-ajax.php?action=alg_wc_product_xml_feeds_generate_xml_external&alg_create_products_xml={n}&secret=.... The secret must equal wp_hash() of your Security Key (alg_products_xml_feeds_security_key). This is the URL embedded in the Manual Cron Job Command.
// Expose an extra WC_Product method to [alg_product_function].
add_filter( 'alg_wc_product_xml_feeds_shortcode_allowed_functions', function ( $functions ) {
    $functions[] = 'get_weight';
    return $functions;
} );
// Register a custom_function target for shortcodes: [... custom_function="my_uppercase"].
add_filter( 'alg_allowed_custom_functions', function ( $functions ) {
    $functions[] = 'my_uppercase';
    return $functions;
} );
function my_uppercase( $value ) {
    return strtoupper( $value );
}

Notes #

  • The value filter name is alg_wc_product_xml_feeds_values (with the alg_ prefix). If you are extending Pro-only values, hook that exact name.
  • The custom_function and [alg_product_function] allow-lists exist for security: arbitrary function names are ignored unless allow-listed. Keep your additions to safe, read-only functions.

Need a hand? #

For implementation questions, our team answers every ticket on the Product XML Feeds support forum.