AEM Assets lets you import asset metadata in bulk using a CSV file. You can do bulk updates for the recently uploaded assets or the existing assets by importing a CSV file. You can also ingest asset metadata in bulk from third-party system in CSV format.
The metadata import is asynchronous and does not impede the system performance. Simultaneous update of the metadata for multiple assets can be resource-intensive because of the metadata writeback activity using asset microservices. Adobe recommends that you plan any bulk operations during lean server usage so that performance for other users is not impacted.
To import metadata on custom namespaces, first register the namespaces.
Navigate to the Assets user interface, and tap/click Create from the toolbar.
From the menu, select Metadata.
In the Metadata Import page, tap/click Select File. Select the CSV file with the metadata.
Specify the following parameters:
|Batch Size||Number of assets in a batch for which metadata is to be imported. The default value is 50. Maximum value is 100.|
|Field Separator||Default value is
|Multi value Delimiter||Separator for metadata values. Default value is
|Launch Workflows||False by default. When set to
|Asset Path Column Name||Defines the column name for the CSV file with assets.|
Click Import from the toolbar. After the metadata is imported, a notification is sent to your Notification inbox. Navigate to asset property page and verify whether the metadata values are correctly imported for assets.
To add date and timestamp when importing metadata, use
YYYY-MM-DDThh:mm:ss.fff-00:00 format for date and time. Date and time are separated by
hh is hours in 24-hour format,
fff is nanoseconds, and
-00:00 is time zone offset. For example,
2020-03-26T11:26:00.000-07:00 is March 26, 2020 at 11:26:00.000 AM PST time.
If the date format does not match
YYYY-MM-DDThh:mm:ss.fff-00:00, the date values are not set. The date formats of exported metadata CSV file is in the format
YYYY-MM-DDThh:mm:ss-00:00. If you want to import it, convert it to the acceptable format by adding the nanoseconds value denoted by
You can export metadata for multiple assets in a CSV format. The metadata is exported asynchronously and does not impact the performance of the system. To export metadata, AEM traverses through the properties of the asset node
jcr:content/metadata and its child nodes and exports the metadata properties in a CSV file.
A few use cases for exporting metadata in bulk are:
Select the asset folder that contains assets for which you want to export metadata. From the toolbar, select Export metadata.
In the Metadata Export dialog, specify a name for the CSV file. To export metadata for assets in subfolders, select Include assets in subfolders.
Select the desired options. Provide a filename and if necessary a date.
In the Properties to be exported field, specify whether you want to export all or specific properties. If you choose Selective properties to be exported, add the desired properties.
From the toolbar, tap/click Export. A message confirms that the metadata is exported. Close the message.
Open the inbox notification for the export job. Select the job and click Open from the toolbar. To download the CSV file with the metadata, tap/click CSV Download from the toolbar. Click Close.
Figure: Dialog to download the CSV file containing metadata exported in bulk.