diff --git a/src/Labels/Label.php b/src/Labels/Label.php
index ece93c7..6112a85 100644
--- a/src/Labels/Label.php
+++ b/src/Labels/Label.php
@@ -839,6 +839,7 @@ public function get_customs_data( $max_desc_length = 255 ) {
 					'gross_weight_in_g'   => $item_gross_weights[ $key ],
 					'single_value'        => $product_value,
 					'value'               => wc_format_decimal( $product_value * $item->get_quantity(), 2 ),
+					'sku'                 => $item->get_sku(),
 				),
 				$item,
 				$shipment,
diff --git a/src/ShippingProvider/Auto.php b/src/ShippingProvider/Auto.php
index 6dd7fa4..c293cc7 100644
--- a/src/ShippingProvider/Auto.php
+++ b/src/ShippingProvider/Auto.php
@@ -1092,6 +1092,8 @@ public function create_label( $shipment, $props = false ) {
 						}
 					}
 
+					do_action( "{$this->get_general_hook_prefix()}error_while_creating_label", $label, $result, $this );
+
 					return $result;
 				}
 			}