WordPress at a glance
filter is not described

woocommerce_product_category_filter_threshold filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_product_category_filter_threshold', 'filter_function_name_2612' );
function filter_function_name_2612( $100 ){
	// filter...

	return $100;
}
$100
-

Where the hook is called

WC_Admin_List_Table_Products::render_products_category_filter()
woocommerce_product_category_filter_threshold
woocommerce/includes/admin/list-tables/class-wc-admin-list-table-products.php 327
if ( $categories_count <= apply_filters( 'woocommerce_product_category_filter_threshold', 100 ) ) {

Where in WP core the hook is used WooCommerce

Usage not found.