Restrict invoice creation to the first order only?

Hi @bugnumber9,

Yes, it is possible. Do you know if the renewal orders store a dedicated meta value that we can use as a condition to block the invoice for those kind if orders?

See: Finding WooCommerce custom fields

Hey @yordansoares.

Many thanks for your reply.

I’ve examined order metadata (in wp_postmeta table, this particular project is not using HPOS yet).

Parent orders have ‘_created_via’ field set to ‘checkout’ while renewal orders have it set to ‘subscription’.

Also, renewal orders have ‘_subscription_renewal’ field which contains the order ID or the parent order. Parent orders don’t have this field.

Hi @bugnumber9:

Please try with this code snippet I just wrote as a courtesy for you:

/**
 * PDF Invoices & Packing Slips for WooCommerce:
 * Enable the PDF invoice only for new Subscriptions (disable it for renewals)
 */
add_filter( 'wpo_wcpdf_document_is_allowed', function( $allowed, $document ) {
	if ( ( $order = $document->order ) && $document->type == 'invoice' && ! $document->exists() ) {
		$is_a_renewal = $order->get_meta( '_subscription_renewal' );
		$allowed = ! empty( $is_a_renewal ) ? false : true;
	}
	return $allowed;
}, 10, 2 );

If you haven’t worked with code snippets (actions/filters) or functions.php before, read this guide: How to use filters