SEO plugin, theme and additional schema extension
Compare theme, plugin and self-inserted JSON-LD. Duplicate or conflicting entities can come from different sources.
Check which extension outputs Organization, Article, or other objects. Multiple sources can describe the same entity with different names, URLs, or authors. Set the jurisdiction for each object type.
Where to check the setting in WordPress
Locate all script blocks with application/ld+json and determine the output extension. If the author, URL or date do not agree, correct the underlying dataset or the schema template. Prevent conflicting parallel outputs of different plugins.
Example of this specific finding
Illustrative control case: The JSON-LD can be read, but mentions an old product price. It is a content inconsistency, not a JSON syntax error.
follow-up audit in WordPress
Compare the structured edition with the published contribution and the author statement. After a change, read all relevant JSON-LD blocks, not just the first one.
Check syntax, schema properties and visible product data separately. After price or inventory changes, also check the generated structured data.
Derogations and scope
A green syntax test does not guarantee correct statements or a highlighted presentation in the search.
Related: WordPress with classic or block theme. SEO plugins and page builders are different; there is no universal menu path for all installations.
Classify the general error
Definition, system-independent causes and further correction examples: Correct syntax errors and false statements separately