OOTB Bulk import tool facilitates a sophisticated content migration experience for non-AEM assets. This tool allows even non-tech users to import assets into AEM from cloud storage. To use this tool, you need all your source assets to be uploaded to a single cloud storage server i.e. Azure Blob Storage or Amazon S3, Google cloud storage etc. The process can be divided into 5 stages to simplify entire process:
1. AEM Pre-migration tasks- Like: Define/ Create base folder hierarchy, Define/ create taxonomy, Define/ Create Metadata Schema and apply those on migration folders.
2. Source Pre-migration tasks: Reorganize DAM hierarchy, Content cleanup, Delete unused/ test assets
3. Upload assets to a cloud storage server i.e. Azure Blob Storage or Amazon S3. Bulk import tool ingests assets in AEM in the same structure that you put in cloud storage.
4. Configure and Run the Bulk Import
5. Prepare for the metadata import (Assuming that the assets ingested in step 3 did not contain necessary metadata added) and run metadata import in AEM
In order to configure Bulk Import which is an option available on AEMaaCS cloud servers (not available in local SDK) follow below:
a. Go to Tools -> Assets -> Bulk Import -> Create
b. Fill in necessary information to your cloud storage like- bucket id, access key, secret key/ token etc.
c. Save the settings and click on "check" to test the connection.
With this you set be all set to run the asset ingestion into AEM. You can even schedule it to tun at specific time as per business need. While configuring the import tool, you can also, configure how to handle existing assets in same location:
Refer this link for more information on this- https://experienceleague.adobe.com/docs/experience-manager-learn/cloud-service/migration/bulk-import.html