Following filters can be used in the functions to fetch the system/custom variables:

• segmentCode : Array of segment codes to filter the widget.
• product : Array of product names to filter the widget.
• productGroup : Array of product group names to filter the widget.
• isCompleted : boolean value. If true, only completed responses will be filtered, otherwise nothing.
• questionID : Array of long values to filter the widget.
• dateRange : SONObject of start and end date JSONObject.
• customVariables : Array of custom variables holding variable name and array of values for that custom variable name.

The global dashboard filters will be also applicable to the Canvas widget added by the user.