Google Data Feeds - Mve Shipping Costs To Google Merchant

Currently we export all of our vendors products (aroun 50k of them) to upload into Google Merchant.

We have over 100 vendors, and every one has a different shipping method. So how do I get the shipping cost (or an estimate, or "plus P&P") pushed through so it displays on the Google ad?

I've pretty much scoured the internet and can't find any mention.

Thanks

Spend 2 weeks and didn't get to work Google Data Feeds. Could someone share your experience how to upload to Google merchant correctly please?

Regards

same here. even with the Alex branding advanced export add-on I didn't get it to work...