If I understand your scenario correctly, a single Group Processing node should be sufficient to do what you are asking.  I will use a simple example that uses one of our demo data set (SAMPSIO.HMEQ)  to explain:    Consider the simple diagram/flow   The metadata in the Variables tab of the IDS node contains 2 target variables: BAD and VALUE and one segment variable REASON.         In the Start Groups node, set the Mode property, under the General Group, to "Stratify" and the Target Group property to "Yes".  This indicates to the Start Groups node that it should loop over all target/group combinations.  A segment variable is considered, by default, to be a stratification variable.       When you run from the End Groups node (or one of its successors in the flow), the Decision tree node will run in this example, 6 times, because there are two targets, BAD and VALUE, specified and the segment variable has 3 strata (blank, DebtCon, HomeImp).  You can see this when the flow has completed and you examine the results of the End Groups node.  It contains among others: a Summary report of each loop, which show that indeed every target was modeled for each stratum   Under the View menu, you can access various results for each loop and each target   Hope this helps, Dom     ... View more