While using the same template key with difference objects/attributes causes an exception when switching to the Data tab in a Guided Rule Template ------------------------------------------------------------------------------------------------------------------------------------------------- Key: DROOLS-3432 URL: https://issues.jboss.org/browse/DROOLS-3432 Project: Drools Issue Type: Bug Components: Guided Template Editor Reporter: Toni Rikkola Assignee: Toni Rikkola Priority: Major When we use the same template in key for different object fields(different fields from the same fields from different objects), we get an exception after selecting the data tab, attaching the screen shot. There is a workaround , we can give every template a unique name as a work around, but this slow down because we need to create different key names with the same information in the data table.