Order Repository save not working

Question

I am trying to associate orders and customer using the following code.

$order = $this->orderRepo->get($oid);
$order->setCustomerId($newCustomer->getId());
$order->setCustomerIsGuest(0);
$this->orderRepo->save($order);

Where orderRepo is Magento\Sales\Api\OrderRepositoryInterface

But save is not working as expected and I can’t see association in order details page/customer order section.

I have checked in the create method in \Magento\Sales\Model\Order\CustomerManagement and Magento is doing the same.

Answer 1

I found the problem it was because some other module was loading the order object using Magento\Sales\Model\OrderFactory and setting some data and then calling save method of it.

I have solved my problem by calling my method after this module's processing.