Error when saving to OneDrive

In a recent update, Microsoft set OneDrive’s integration with the system to read-only mode:

As a result, KeePassium cannot save changes to databases stored in OneDrive:

Workaround

Until Microsoft fixes their app, there are two options:

1. Sync using third-party app
   • Install BoxCryptor (free) or similar app. It will work directly with OneDrive servers and thus avoid any limitations of the original OneDrive app.
   • In BoxCryptor, add OneDrive source and enter your credentials
   • Open iOS Files app and make BoxCryptor visible there
   • Open KeePassium, tap Plus → Open Database → Boxcryptor → select your database.
     • Free version of KeePassium supports only one database at a time, so you might need to remove (not delete!) the previous database from KeePassium first.
2. Sync manually
   • Download the database and edit it as a local file:
     • Open OneDrive
     • Tap … next to your database → Open in another app → KeePassium
     • The database will be copied to KeePassium as a local file
   • To upload local changes back to OneDrive:
     • Open KeePassium and go to the list of databases (tap < Back a few times)
     • Long-press the database → Export → OneDrive