Exclude specific product categories from invoices

Hi @ckriegel

You can disable invoice creation for all orders that have products with the ‘donations’ category in them via the following code snippet:

add_filter( 'wpo_wcpdf_document_is_allowed', 'wpo_wcpdf_not_allow_invoice_for_certain_categories', 10, 2 );
function wpo_wcpdf_not_allow_invoice_for_certain_categories ( $condition, $document ) {
	if ( $document->type == 'invoice' ) {

		//Set categories here (comma separated)
		$not_allowed_cats = array( 'donations' );

		$order_cats = array();
		if ( $order = $document->order ) {
			//Get order categories
			foreach ( $order->get_items() as $item_id => $item ) {
				// get categories for item, requires product
				if ( $product = $item->get_product() ) {
					$id = $product->get_parent_id() ? $product->get_parent_id() : $product->get_id();
					$terms = get_the_terms( $id, 'product_cat' );

					if ( empty( $terms ) ) {
						continue;
					} else {
						foreach ( $terms as $key => $term ) {
							$order_cats[$term->term_id] = $term->slug;
						}
					}
				}
			}
		}

		// get array of category matches
		$cat_matches = array_intersect( $not_allowed_cats, $order_cats );
		if ( count( $cat_matches ) > 0 ) {
			return false; // 1 or more matches: do not allow invoice
		}
	}
	return $condition;
}

This code snippet should be added to the functions.php of your child theme or via a plugin like Code Snippets. If you haven’t worked with code snippets or functions.php before please read the following guide: How to use filters

• This reply was modified 3 years, 7 months ago by kluver.

Hi, thanks a lot for the code snippet ! I’m going to test it

Hi, just to confirm, i tested and it works perfectly, thank you !
kind regards,
Cyrille

Hello @ckriegel,

I’m glad to know that it works!

If you don’t mind and have the time, do you think you could leave us a review?

Thanks in advance and all the best with your store!