Confluence Cloud Migration Missing Attachments
Workaround available Server, Data Center, Cloud Updated November 14, 2026Based on 4 user reportsHow we research
Quick answer
Attachments can go missing when migrating with the Confluence Cloud Migration Assistant. Fix missing attachments flagged in pre-migration checks before migrating, and contact Atlassian support if found afterward.
Most likely fix: Fix before migrating
How to fix it
Try these in order — the most common fix is first.
1. Fix before migrating
- Run the Migration Assistant pre-migration checks
- Download the missing attachments CSV
- Resolve each item in the source site, then migrate
Did this fix it?2. Refresh for broken previews
- Refresh the page when an attachment preview is broken right after migration
Did this fix it?3. Contact Atlassian support
- If attachments are missing after migration, open a ticket with the migration ID and affected pages
Did this fix it?
Symptoms
Attachment File Not Found messages, broken images or attachment previews after migrating to Cloud.
Why it happens
- Files missing at the source that the pre-migration check flagged
- Mismatched counts in the Assistant's check (bug reports)
- Stale references in file macros
This guide also covers
- confluence cloud migration missing attachments
- confluence migration assistant attachment not found
- confluence migration broken macros
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