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

paid action
In-feed is a format that you place inside your feed to help monetise your site and provide a better user experience to your visitors. For example, a feed can be an editorial feed (e.g. a list of articles or news) or listings (e.g. a list of products, services, etc.).

Requirements
You need this to get it done:

Page URL
If you choose the "Let Google suggest a style" option, you can enter your page URL and Google will scan your site for feeds. This option is recommended by Google.
Template
If you choose the "Create ad style manually" option, you can select one of the following templates:
Image above
Image on the side
Title above
Text only
Ad Unit Name
The internal name for your in-feed ad.
Allow Selected Display Ads
Turn this option on to also allow selected display ads to appear in your in-feed ad unit.
Font
Set the font for all of the text in your ad. You can choose from a range of Google fonts.
Text Wrap
Turn this option on if you want the text to wrap around the image.
Background Colour
Set the background colour for the ad.
Left/Right Image Alignment
If your ad has an image, choose whether you want the image to be aligned with the left-hand or right-hand side of the ad.
Border Size
Set the size of the border in pixels.
Image Size
Set the size of the image.
Choose an image aspect ratio of either 1.91:1 or 1:1. Google recommends that you choose the option that's closest to the aspect ratio of the images in your feed.
Set the width of the image. You can specify the width in percent or pixels.
Image Padding
Set the padding around the top, bottom and sides of the image in pixels.
Border Colour
Set the border colour for the ad.
Padding
Set the padding around the top, bottom and sides of the ad in pixels.
Short/Long Headline
Select whether you want your ad to have a short or long headline.
Headline Style
Set the style of the headline:
Set the font size of the headline in pixels.
Choose whether you want the headline to be left, centre or right aligned.
Choose whether you want the headline to be bold.
Choose the font colour for the headline.
Headline Padding
Set the padding around the top, bottom and sides of the headline in pixels.
Show Description
Turn this option on if you want to show the ad's description.
Description Styles
Set the style of the description:
Set the font size of the description in pixels.
Choose whether you want the description to be left, centre or right aligned.
Choose whether you want the description to be bold.
Choose the font colour for the description.
Description Padding
Set the padding around the top, bottom and sides of the description in pixels.
URL Styles
Set the style of the URL:
Set the font size of the URL in pixels.
Choose whether you want the URL to be left, centre or right aligned.
Choose whether you want the URL to be bold.
Choose the font colour for the URL.
URL Padding
Set the padding around the top, bottom and sides of the display URL in pixels.
Button Font Colour
Set the font colour for the button.
Button Border Colour
Set the border colour for the button.
Code Snippet
Once you are finished designing your ad, click "Save and Get Code" and Google will provide you with an HTML code snippet to copy and paste in between the code for your content feed. You can add the same code multiple times within the same feed.
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How-To Articles
A list of useful links for you:

0
AdSense Help - In-Feed Ads
Information about Google In-Feed Ads.
Official
Link missing here or found errors? Improve How-Tos