# TemplateExternalTriggerException External trigger exception for template inputs with type field **Type**: `object` ## Properties - name: backfillDataTime (optional) type: string description: Time period for backfilling data - name: id (optional) type: string description: Unique identifier for this exception - name: predicate (required) type: `EventPredicate` - name: stopAggregatingDataTime (optional) type: string description: Time period to stop aggregating data - name: triggerId (optional) type: string description: ID of the trigger to invoke - name: variables (optional) type: array of string description: Variables to extract from events