It is essential to have Xray version 7.8.2 or the latest installed, as this version includes the attachments feature. Additionally, you'll need to ensure that JCMA (Jira Cloud Migration Assistant) is updated to version 1.12.16 or higher. Below is a step-by-step guide on how the preload process works:
This version is required as it introduces the attachments functionality.
Starting from JCMA 1.12.16, no feature flags are required. A new option, "Preloadable app data only," is now available on the projects screen.
For more details on preloading app data before migration, refer to Atlassian's official documentation:
Preload app data before migration | Atlassian Support
By following these steps, the preload process should work as expected, ensuring a smoother migration with minimal downtime.