Overwriting data flow source

Use the Call instruction with the Data-Decision-DDF-RunOptions.pxOverwriteSource activity to overwrite primary or secondary source.

1. Create an instance of the Activity rule by selecting Activity from the Technical category.

2. In the activity steps, use the Call Data-Decision-DDF-RunOptions.pxOverwriteSource method.

3. Click the arrow to the left of the Method field to expand the method and specify its parameters:

   • Name of the instance that you want to use as the source.

   • Source type - Enter Data set (default), Data flow, or Report Definition).

   • Partition key for distributed data flow runs if the source is a report definition.

   • Code-Pega-List page to pass report definition support parameters. Specify each parameter using Embed-NameValuePair.

   • Shape ID (the pyMOID of the shape) that you are going to overwrite. By default, it is the destination that represents the primary source.

   • The applies to class of the component that you use to overwrite the original source. By default, it is the applies to class of the data flow.

   • Additional parameters used in nested data flow chains:

     • Parameter to identify the applies to class of a data flow that is not the one defined in the RunOptions page.

     • Parameter to run a data flow that is not the one defined in the RunOptions page.

4. Click Save.

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