Envelope keys for documents in relational database (Document Broker Plus) If the documents are retrieved from a relational database (Document Broker Plus), you must use metadata associated with the stored documents as envelope keys. Prerequisites Metadata is defined using document type resources in the Project that stored the documents. To be able to define envelope keys in your Project, you must connect the resource set that contains the document type resources to your runtime configuration. To define an envelope key 1 Open the Runtime Output Connector Settings dialog box (generic layer). 2 Click the Job End icon and select the Enveloping tab. 3 Click Browse. The Browse for Resources dialog box opens. 4 Browse to and open the document type resource that contains the metadata to use as key. 5 Click . The Add Envelope Key dialog box opens. 6 Configure the envelope key: – Metadata name – the metadata name to use as envelope key. – Sort order – Ascending or Descending. 7 Click OK.