# Setting up a crawler for Amazon S3 event notifications for a Data Catalog table
<a name="crawler-s3-event-notifications-setup-console-catalog-target"></a>

When you have a Data Catalog table, set up a crawler for Amazon S3 event notifications using the Amazon Glue console:

1.  Set your crawler properties. For more information, see [ Setting Crawler Configuration Options on the Amazon Glue console ](https://docs.amazonaws.cn/glue/latest/dg/crawler-configuration.html#crawler-configure-changes-console). 

1.  In the section **Data source configuration**, you are asked * Is your data already mapped to Amazon Glue tables? * 

    Select **Yes** to select existing tables from your Data Catalog as your data source. 

1.  In the section **Glue tables**, choose **Add tables**.   
![Data source configuration page with Yes option selected to use existing Glue tables.](http://docs.amazonaws.cn/en_us/glue/latest/dg/images/crawler-s3-event-console1-cat.png)

1.  In the **Add table** modal, configure the database and tables: 
   +  **Network connection** (Optional): Choose **Add new connection**. 
   +  **Database**: Select a database in the Data Catalog. 
   +  **Tables**: Select one or more tables from that database in the Data Catalog. 
   +  **Subsequent crawler runs**: Choose **Crawl based on events** to use Amazon S3 event notifications for your crawler. 
   +  **Include SQS ARN**: Specify the data store parameters including the a valid SQS ARN. (For example, `arn:aws:sqs:region:account:sqs`). 
   +  **Include dead-letter SQS ARN** (Optional): Specify a valid Amazon dead-letter SQS ARN. (For example, `arn:aws:sqs:region:account:deadLetterQueue`). 
   +  Choose **Confirm**.   
![Add Glue tables dialog showing database selection, table selection, and event-based crawling options.](http://docs.amazonaws.cn/en_us/glue/latest/dg/images/crawler-s3-event-console2-cat.png)