For implementing microdata on a WP site is Schema, it fully integrates with Yoast SEO and becomes its integral part. Let's move on to installing the plugin. in the WP console email database look for "Schema". Click "Install" and then "Activate". Go to "Schema""Settings" Fill in the basic information about the site. Next, we fill in additional information: content, knowledge graph, search results, and optimize the site for the desired type of data. Go to Schema Types and add the selected markup type or category. Also, there are a large number of paid and free alternative plugins for generating markup.
Remember When using the “Schema” plugin, the “Yoast SEO” preset is required (at the time of writing, the free version is enough). How to check the correctness of the data entered on the site? If structured data is successfully implemented, but you are not sure that everything went according to plan, you can use a special verification tool. The extended results test is completely free and allows you to check not only the website address, but also the prepared html code that has yet to be implemented. There may also be warnings - this means that schemas are found, but not completely populated with data.