Action Details
Requirements and how-to articles for Etsy's action:

paid action
Google Shopping is an optional advertising tool that allows you to promote your items outside of the Etsy marketplace. Note: If you purchase Google Shopping ads, you'll be automatically opted out of Etsy's free Google Shopping Engine ads.

You need this to get it done:

Target Country
Choose the country where you want your ads to be shown.
The available countries to choose from are: United States, Canada, United Kingdom, Germany, France and Australia.
Note: You can only advertise in one country at a time, but you can change this selection at any time.
Daily Budget
Set the maximum amount which you are willing to spend per day on your ad campaign (must be at least $1.00 USD.)
Note: The daily budget you set is an average and it may fluctuate by 100% for a given day. As long as your daily budget is consistent, your monthly spend will not go above your budget for the month.
Requirements missing or found errors? Report

How-To Articles
A list of useful links for you:

Etsy - Advertising & Marketing Policy
Etsy's official policy for advertising and marketing, which is part of their terms of use.
Etsy Help Centre - How to Set up and Manage a Google Shopping Campaign
Official information about setting at a Google Shopping ad campaign for your Etsy listings.
Google Ads Help - Why costs might exceed your average daily budget
Information about daily budgeting and monthly charges for Google Ads.
Link missing here or found errors? Improve How-Tos