A File Transfer Size Exceeded error can occur if a policy or manual move attempts to upload a file that exceeds the maximum file size allowed by your cloud provider.
The maximum size per file that can be uploaded to cloud storage is governed by the service level agreement with your cloud storage provider. The storage quota and file size limit is enforced by your provider. In addition, a file must be smaller than the remaining available space below your quota. For information, see Section 4.11.4, Maximum File Size for Uploads to Cloud Storage.