The breadcrumbs may not only boost your visibility in search results, but also the whole user experience. To fully utilize them, ensure that they mirror the current structure of your WordPress permalinks.
As previously stated, Google uses breadcrumbs to classify information obtained from a website in search results. A well-designed breadcrumb trail on a page displays the site structure, allowing users to comprehend and effectively explore your website.
How to make Permalink Manager filter the breadcrumbs?
For more consistency, Permalink Manager allows you to filter them and make them fit your new custom permalinks structure. This might happen if you have changed the permalinks to include or exclude your parents' URL slugs. Please keep in mind that the breadcrumbs are not modified by default. If you want them to be changed automatically, activate "Breadcrumbs support" in the plugin's options.
To explain how this feature works in detail, here's a comparison of the breadcrumbs output before and after the custom permalinks are modified.
Before the change
Prior to changing the custom permalink, the original URL is quite straightforward and contains only the slug of the actual page. As you can see, there are no parent slugs in either the URL or the breadcrumbs.
After the change
When the parents' slugs (members/directory) are added to the custom permalink, the situation changes.
The function will work correctly only if the intermediate slugs are connected to any existing post, page or term.
"Members" will be included only, if https://example.com/members URL exists.
"Directory" will be included only, if https://example.com/members/directory URL exists.
As a result, links to parent pages are added to the breadcrumbs list automatically: