GitBook Git Sync Production Failure with Local Preview Success

GitBook allows spaces to be linked to a GitHub or GitLab repository for automated imports and publishing. In certain configurations, a local markdown preview of content updates succeeds, but the production synchronization fails to push changes to the hosted space.

This discrepancy typically occurs when the connected account possesses read access for local previews, but the GitBook integration lacks the necessary write permissions or plan-level authorization to execute the production sync. This creates a scenario where content appears valid in a local environment but remains stale in the live production environment.

When a production sync fails due to these permission boundaries, it is unclear how the system handles the existing live content. Does the failed sync leave the previously published version intact, or does it result in a partial update of the space?