---
title: "Troubleshooting - Google Structured Data - Tassos Docs"
description: ""
url: "https://www.tassos.gr/docs/google-structured-data/troubleshoot"
date: "2026-05-12T01:14:38+00:00"
language: "en-GB"
---

# Troubleshooting

##  [  Troubleshoot Structured Data not Added to the Page  ](https://www.tassos.gr/docs/google-structured-data/troubleshoot/troubleshoot-structured-data-not-generated)

##  [  Troubleshoot Structured Data not Identified by the Google Rich Results Tool  ](https://www.tassos.gr/docs/google-structured-data/troubleshoot/troubleshoot-structured-data-not-identified-by-the-google-rich-results-tool)

##  [  Troubleshoot Structured Data not Showing in Search Results  ](https://www.tassos.gr/docs/google-structured-data/troubleshoot/structured-data-not-showing-in-google)

##  [  Preview button not showing on Structured Data Testing Tool  ](https://www.tassos.gr/docs/google-structured-data/troubleshoot/preview-button-not-showing-on-structured-data-testing-tool)

##  [  I am seeing the "is not a known valid target type for the identifier property" error  ](https://www.tassos.gr/docs/google-structured-data/troubleshoot/i-am-seeing-is-not-a-known-valid-target-type-for-identifier-property-error)

##  [  Fixing Error decoding JSON data in Joomla Articles  ](https://www.tassos.gr/docs/google-structured-data/troubleshoot/fixing-error-decoding-json-data-in-articles)

##  [  Fix missing Google Structured Data tab in the Article Editing Page  ](https://www.tassos.gr/docs/google-structured-data/troubleshoot/google-structured-markup-tab-is-missing)

## Schema

```json
{
    "@context": "https://schema.org",
    "@type": "BreadcrumbList",
    "itemListElement": [
        {
            "@type": "ListItem",
            "position": 1,
            "name": "Home",
            "item": "https://www.tassos.gr"
        },
        {
            "@type": "ListItem",
            "position": 2,
            "name": "Documentation",
            "item": "https://www.tassos.gr/docs"
        },
        {
            "@type": "ListItem",
            "position": 3,
            "name": "Google Structured Data",
            "item": "https://www.tassos.gr/docs/google-structured-data"
        },
        {
            "@type": "ListItem",
            "position": 4,
            "name": "Troubleshooting",
            "item": "https://www.tassos.gr/docs/google-structured-data/troubleshoot"
        }
    ]
}
```