When archived files are restored, the related blob is not deleted from Azure Blob Storage to enable user restores of moved or copied files.
A regular clean-up process to remove orphaned blobs will be added soon to resolve this limitation.
ShArc supports SharePoint libraries using major versions. Libraries with minor versioning enabled are currently not supported and are skipped during archiving. Files in these libraries remain unchanged in SharePoint.
In a specific scenario, restoring an archived file may result in unexpected content:
This is a rare edge case and will be addressed in an upcoming update.
In a specific scenario, restoring an archived file may result in incorrect content and an invalid file extension:
This is a rare edge case and will be addressed in an upcoming update.
When media files (video and audio) are uploaded, SharePoint analyzes their metadata and extracts it. This process may occur with a considerable delay of up to 30 minutes after the file was uploaded. If a media file is archived before SharePoint has completed the metadata extraction, the media metadata may be attached to the stub (.sharc) file. This can cause SharePoint to continue treating the stub as a media file. Clicking the file name then does not start the ShArc restore. Instead, SharePoint shows a dialog stating that a preview is not available, or downloads the stub file. To restore such a file, use the inline "Restore" action next to the file name or the "Restore with ShArc" entry in the file context menu (requires the ShArc SharePoint SPFx extension). To avoid this, archive media files only after they have been stored in SharePoint for at least 30 minutes.
When running an archive or restore operation, a cryptic error message such as AggregateException_ctor_Defaultmessage or similar may sometimes be shown. This is not a critical error: the archive or restore operation is still running, and refreshing the browser will remove the error message.
The "Estimation" section on the Archive page leverages SharePoint Search to quickly determine the expected number and size of files based on the configured conditions. Since the SharePoint search index is updated periodically and may not reflect recent changes immediately, these values can differ from the current state of the data. "Estimation" therefore provides an estimate based on the current SharePoint search index.
The same mechanism is used in the "Progress" view. When an archiving operation starts, ShArc initially displays the estimated values, which may be adjusted once the actual number and size of processed files are known.
Files that have been archived can no longer be searched by their contents, as the content is no longer available in SharePoint. They may, however, still be searched for by name and metadata.
Archived files cannot be restored by external users or users that do not have an Office 365 license assigned. In this case, an internal, licensed user must restore the file first before external users are able to access it.
Archiving files from the SharePoint 'My Site' (company-my.sharepoint.com) is currently not supported.
For Multi-Geo SharePoint tenants, only the PDL (Preferred Data Location) is supported.
After restoring files with sensitivity labels that were archived with ShArc 1.12.3 or earlier, the metadata in SharePoint may no longer show those labels, but the files and labels will still work as intended.
Applying sensitivity labels or retention labels to files that are already archived by ShArc is currently not supported.