Question

I’m writing an observer that check every item in a order, at some point I get the items

  foreach($order->getAllItems() as $item){
    //do something
    echo $item->getSku();
  }

  //output
  sku-first
  sku-first
  sku-second
  sku-second

but I get twice the same item with the same sku of course, where’s the catch? maybe in some configuration file?

Answer 1

I believe you want to use getAllVisibleItems() instead of getAllItems().

I believe getAllItems gets the configurable along with its associated simple product.