Expected value in a response rule is invalid or null.
Resolution
Review DLP logs to find which incident and policy triggered Event 1807
On the Enforce Server, open the IncidentPersister#.log
Search for the following: Error executing command: set-status
Example result: File: Enforce\logs\debug\IncidentPersister_0.log Level: SEVERE Thread: 148 Source: com.vontu.command.CommandRuntime.execute Message: Error executing command: set-status java.lang.NullPointerException
Pull the Thread # from the result above (Example: Thread: 148) and search 'up' in the IncidentPersister.logs for that thread for items BEFORE the "Error executing command: set-status" message.
Example: Search on "Thread: 148"
Result: File: Enforce\logs\debug\IncidentPersister_0.log Level: WARNING Thread: 148 Source: com.vontu.logging.LocalLogWriter.write Message: Failed to send incident email notification. Email notification was not sent for Incident "#####" and Policy "<policy name>". No recipients specified for incident notification.
Review the incident and associated policy response rules to determine which expected items were null or invalid.