Backup or Backup Copy Job for SharePoint, OneDrive, or Teams Data Fails With: "Cannot find object"
Challenge
After upgrading Veeam Backup for Microsoft 365 to v8 (builds 8.0.2.159 or 8.0.2.200), an incremental backup or a backup copy job protecting SharePoint, OneDrive, or Teams data fails with the error:
Cannot find object ...
Cause
In Object Storage Repositories, the metadata saved for the protected SharePoint lists and webs has been mistakenly overwritten.
This issue only occurs under the following very specific conditions:
- An Object Storage Repository was created in Veeam Backup for Microsoft Office 365 while running version 4.x or 5.x.
and - That Object Storage Repository contains backup data for SharePoint, OneDrive, or Teams files.
and - That Veeam Backup for Microsoft 365 deployment was upgraded from any version 7 build to either 8.0.2.159Released 2024-09-03 or 8.0.2.200Released 2024-09-11.
Note: Upgrades from version 7.x to build 8.0.3.1044Released 2024-10-08 and higher were not affected by this issue.
Solution
- Identify potentially impacted repositories according to the conditions in the Cause section.
- Open an Administrative PowerShell terminal and use the following command to produce a list of impacted sites:
Replace<repo_name>with the name of the potentially impacted Object Storage Repository.
- For each site listed in the output of the script from Step 2:
- Identify the backup job associated with the site.
- Run a full synchronization cycle for each job containing impacted objects.
Use the following PowerShell cmdlet:
ReplaceJobNamewith the name of the affected job.
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