OneDrive Migration Fails with "Exception: System.ArgumentOutOfRangeException" (4381845)

During a OneDrive migration, the migration job fails with the following error:

Exception: System.ArgumentOutOfRangeException
Message: length ('-2') must be a non-negative value. (Parameter 'length')
Actual value was -2.

The stack trace indicates the failure occurs during manifest creation within the OneDrive migration process:

Quest.OneDrive.LegacyLibrary.SPBackupConfigFactory.CreateSPObjects
Quest.OneDrive.LegacyLibrary.OneDriveClientData.CreateManifestFiles

This is a data-related parsing failure that occurs when ODM processes OneDrive file metadata or URLs that do not meet internal parsing requirements. During string manipulation, a negative substring length is calculated, triggering the exception.

Common contributing factors include:

1. URL Length Limitations:
   - Files with URLs exceeding 400 characters are not supported for migration.
   - Deep folder hierarchies or long file names may exceed this limit during manifest generation.
   
   
2. Invalid Characters or Unsupported Metadata:
   - Files or folders with legacy or unsupported characters.
   - Metadata that cannot be parsed by the OneDrive "LegacyLibrary" during manifest creation.

Perform the following steps to identify and remediate the problematic item:

1. Create a new OneDrive migration task and re-run it to rule out a temporary manifest issue.

Or:

1. Go to Reports > Error Log and download the error log.
2. Identify the failed file or folder listed in the log.
3. Check path length - shorten URLs over 400 characters by renaming, moving, or flattening folders
4. Rename, move, or remove the problematic item in the source OneDrive.
5. Re-run the migration.