I reached out to chat support and they resolved it.
@muretas They said some data was out of sync between the admin and the backend and they ran a script to fix it.
Topic summary
Issue: Creating an Admin role in a Shopify store triggers the error “One or more app handles are invalid,” even with only default apps installed. (App handles are internal identifiers for apps/features; the error appeared when saving the role.)
Developments:
- A screenshot was shared confirming the exact error message.
- Another participant reported the same problem on a non-new store.
Support response and resolution:
- Shopify staff advised that account-specific troubleshooting isn’t handled in the Community and directed users to the Help Center.
- The original poster contacted chat support; support identified out-of-sync data between the admin and backend and ran a script to re-sync it, which resolved the issue.
Outcome and guidance:
- Resolved for the original poster via Shopify support.
- Recommended action for others: contact Shopify support to have the backend/admin data re-synced (script run). No user-side fix was provided in the thread.
Status: Resolved for OP; potentially ongoing for others experiencing it.