When provision of a movement instruction for moving a file stored in a first folder to a second folder is detected, whether exclusion processing is already performed for the file is determined. In a case where it is determined that the exclusion processing is not performed for the file, the exclusion processing is performed so that the file to be operated by another user is not allowed and information indicating that the file is being moved is stored. After the file is moved to the second folder, the exclusion processing for the file is canceled. In a case where it is determined that the exclusion processing has already been performed for the file and when the information indicating that the file is being moved is stored for the file for which the exclusion processing has been performed, a notification indicating that the file is being moved is provided.