Support Article
Data Flow fails to run
SA-47795
Summary
Data Flows fail to run and the below error message displays on screen.
Error Messages
Pre-processing activity of pzInitializeLP feed action failed : Problem invoking function: pega_rules_utilities.callActivity--(ClipboardPage,String,ParameterPage), Stages are different. Only metrics from the same stage can be merged
Steps to Reproduce
- Run the Marketing Campaign containing a Data Flow.
- Navigate to the landing page from Real Time processing Data Flows.
Root Cause
The Merge shape in the Data Flow cannot have input properties from different classes.
Resolution
Perform the following local-change:
Update the Merge shape in the Data Flow with input properties from the same class instance.
Alternatively, follow the below steps:
- Stop the Data Flow node from the Designer Studio > Decisioning > Infrastructure > Services > Data Flow.
- Click the icon next to Execute and Stop. This stops the running of the Data Flow instances.
- Perform a Private Check out of the pyIsProductionNode When rule and remove the first or/and second conditions as applicable.
- Click Save.
Published March 8, 2018 - Updated October 8, 2020
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