> For the complete documentation index, see [llms.txt](https://help.contouron.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.contouron.com/platforms/facebook/limitations.md). # Limitations > For the complete documentation index, see [llms.txt](https://help.contouron.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.contouron.com/platforms/facebook/limitations.md). ## Limitations ### "AI Generated" label Meta does not expose the "AI Generated" content label through their API. You cannot add this label to Facebook posts published through Contouron or any third-party tool. *** ### Custom cover images for videos Facebook does not support custom cover images for video posts via API. You cannot set a custom thumbnail when publishing Facebook videos through Contouron or any third-party tool. *** ### "Published by" label The "Published by \[App Name]" label appears on Facebook posts when published via any third-party app. Facebook does not allow you to remove this label because it is part of their transparency policy. *** ### Regular feed video posts Facebook no longer supports regular feed video posts through the API. **All Facebook videos publish as Reels** -- see Facebook Reel requirements. *** ### One Contouron account per Facebook account You can connect multiple Facebook accounts to a single Contouron account. However, the same Facebook account cannot be connected to more than one Contouron account at the same time. If you connect Facebook Account X to Contouron Account A, then connect Facebook Account X to Contouron Account B, the token in Contouron Account A becomes invalid. Reconnecting in Contouron Account A then breaks Contouron Account B. This causes intermittent errors like: * `Could not upload video to Facebook: There was a problem uploading your video file` **Fix:** Connect each Facebook account to only ONE Contouron account. To manage multiple Facebook Pages owned by the same Facebook user, connect all of them inside a single Contouron workspace. *** ### 35 posts per 24h is per Facebook account, not per Page Facebook caps publishing at 35 posts per 24 hours **per parent Facebook account**, not per Page. This is a Facebook-enforced limit on the Facebook user that authorized Contouron. Every post across every Page connected from that Facebook login counts against the same 35-post quota. **Example:** You have 3 Facebook Pages connected through the same Facebook login. Each Page posts 12 times in a 24-hour window. That's 36 total posts on the parent account — you'll hit the limit even though no individual Page exceeded 12 posts. **Fix:** Keep the total under 35 posts per 24 hours across all Pages under the same Facebook login. To increase headroom, connect Pages owned by a different Facebook user (a separate Facebook login) so each parent account has its own 35-post quota. Facebook also recommends staying under 5 posts per day per Page for organic reach. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://help.contouron.com/platforms/facebook/limitations.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.