Issue Description
Migrating Confluence from a server or data center to the Cloud can be complex, particularly when the migration stalls at 0%. Here’s a detailed guide to resolving this issue using the Confluence Cloud Migration Assistant (CCMA).
Solution
Follow the steps below to troubleshoot the migration issues.
Pre-migration checks
Pre-migration steps: Ensure all pre-migration steps are completed. This includes preparing the environment and validating the prerequisites.
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Macro update status: If the macro update status does not reflect the changes, you need to disable and re-enable the HTML for confluence and verify the status again.
Migration preparation
Update CCMA: You must ensure the Confluence Cloud Migration Assistant is up-to-date before migrating.
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Warnings and errors: Address all warnings and errors during the preparation phase to ensure a smooth migration.
Migration
Stalled Migration at 0%
If the migration appears stuck at 0% on the Migration Assistance page, perform the following checks:
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You must check the macro usage on the server and cloud to confirm data migration, even if the UI shows 0%. To learn about macro usage, log in as Confluence Admin > Settings > Administration > Macro usage. Another way is to use the Advanced Search option in Confluence to find the pages where the particular macro is used.
Handling Specific Issues
No profile configured: If profiles are not configured in the Data Center, you must perform a migration specifically for the HTML for Confluence app data. Reinstall the app on the Cloud and migrate only the app without migrating the spaces again.
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