Get merchant private data in order state change notification

Question

I am using google checkout with a ruby on rails application. I have added merchant private data in HTML API like this:

<input type="hidden" name="shopping-cart.merchant-private-data" value="123">

Merchant private data is only accessible in new order notification.

Is there any way to access it in order state change notification??

Answer 1

Not that I know of (only in new-order-notification).

You'd probably want to know that Google Checkout will be retired in November.