Shipping attribute on google feed not showing

Hi, i am trying to get the shipping attribute to show up on the google product feed but it is not. My shipping method is showing at checkout but not on the feed.
Any ideas please?

Shipping rates are not sent to Google products as the shipping rates format of Google products does not correspond to what you have in HikaShop.

Hi Nicolas, thanks for replying quickly. You need a shipping method for the google feed or google wont list the items. I have tried to and i get error;"missing delivery information". The "Integration with google products" feature of Hikacart is not functional without this is it?

Googles merchant news-http://merchant-center-announcements.blogspot.co.uk/2012/02/items-may-soon-fail-to-process-due-to.html

Hi,

In short: No, HikaShop's Google product plugin works.
In long:
So first, that policy is not yet enforced, so the error is not critical and you should still be able to get your products on Google products even though you have that "warning".
Then, in any case, you can specify flat rates for shipping and taxes or even UPS/USPS/FedEx automatically calculated rates in your Google products account options and you won't have the message either.
Finally, looking here support.google.com/merchants/bin/answer.py?hl=en&answer=160162 I can see that Google Products introduced recently additional options in their API so that sending complex tax/shippping models like what is possible in HikaShop might be a bit more close to feasible in the future.
We'll have to study that more in depth and already the optinos in your Google Products account should cover a lot of cases.