> For the complete documentation index, see [llms.txt](https://zotek.gitbook.io/facebook-multiple-pixel/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://zotek.gitbook.io/facebook-multiple-pixel/hot-topic-and-troubleshooting.md).

# Hot Topic and Troubleshooting

- [Pixel issue](https://zotek.gitbook.io/facebook-multiple-pixel/hot-topic-and-troubleshooting/pixel-issue.md)
- [Meta Pixel Helper Event Display Limitation](https://zotek.gitbook.io/facebook-multiple-pixel/hot-topic-and-troubleshooting/pixel-issue/meta-pixel-helper-event-display-limitation.md)
- [The importance of Conversion API](https://zotek.gitbook.io/facebook-multiple-pixel/hot-topic-and-troubleshooting/pixel-issue/the-importance-of-conversion-api.md)
- [Unable to get Access Token](https://zotek.gitbook.io/facebook-multiple-pixel/hot-topic-and-troubleshooting/pixel-issue/unable-to-get-access-token.md)
- [Duplicated Events Tracking](https://zotek.gitbook.io/facebook-multiple-pixel/hot-topic-and-troubleshooting/pixel-issue/duplicated-events-tracking.md)
- [Catalog issue](https://zotek.gitbook.io/facebook-multiple-pixel/hot-topic-and-troubleshooting/catalog-issue.md)
- [Catalog - Full Permission](https://zotek.gitbook.io/facebook-multiple-pixel/hot-topic-and-troubleshooting/catalog-issue/catalog-full-permission.md)