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

Requirements
You need this to get it done:

Price (required)
Property (Open Graph): product:price:amount
Property (Schema.org): price
Description: The product price (without any currency sign, e.g., "6.50")
Type (required if using Open Graph)
Property (Open Graph): og:type
Description: Must take the value of "product" or "og:product"
Title (required)
Property (Open Graph): og:title
Property (Schema.org): name
Description: The product name. This title may be truncated, depending on length. All formatting and HTML tags will be removed.
Description
Property (Open Graph): og:description
Property (Schema.org): description
Description: The product description. This may be truncated, depending on length. All formatting, line breaks and HTML tags will be removed.
URL (required if using Schema.org)
Property (Open Graph): og:url
Property (Schema.org): url
Description: Canonical URL for the page (You can also specify canonical with standard HTML markup: <link rel="canonical" href="..."/>)
Currency (required)
Property (Open Graph): product:price:currency
Property (Schema.org): priceCurrency
Description: The currency code (e.g. "USD")
Brand Name
Property (Open Graph): og:brand
Property (Schema.org): brand
Description: The brand name of the product (e.g., "Lucky Brand")
Availability
Property (Open Graph): og:availability
Property (Schema.org): availability
Description: The current availability of the product.
Possible values (Open Graph): instock, preorder, backorder (or pending, meaning it will be back in stock soon), out of stock or discontinued
Possible values (Schema.org): http://schema.org/InStock, http://schema.org/OnlineOnly, http://schema.org/InStoreOnly, http://schema.org/OutOfStock, http://schema.org/PreOrder and http://schema.org/Discontinued
Standard Price
Property (Open Graph): og:price:standard_amount
Property (Schema.org): standardPrice
Description: If the product is on sale, this is the non-sale price.
Requirements missing or found errors? Report

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

0
Pinterest Help Centre - Product Pins
Official information on Product Pins.
Official
0
Pinterest Developers - Product Pins
The official technical information on Product Rich Pin properties.
Official
Link missing here or found errors? Improve How-Tos