<div id="message" class="inline notice woocommerce-message">
	<p><?php _e( 'Before you can use Price Matrix, you need add minimum of two variation attributes on the <strong>Attributes</strong> tab.', 'woocommerce' ); ?></p>
	<p><a class="button-primary" href="<?php echo esc_url( apply_filters( 'woocommerce_docs_url', 'https://docs.woocommerce.com/document/variable-product/', 'product-variations' ) ); ?>" target="_blank"><?php _e( 'Learn more', 'woocommerce' ); ?></a></p>
</div>