+---
+layout: default
+title: Message detail for PLMC27
+toc: false
+---
+
+Detail for Marionette Collective message PLMC27
+===========================================
+
+Example Message
+---------------
+
+ Formats supplied to aggregation functions must have a :format key
+
+Additional Information
+----------------------
+
+DDL aggregate functions can take a custom format as in the example below:
+
+ aggregate average(:total_resources, :format => "Average: %d")
+
+This error indicate that the :format above could not be correctly parsed.