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1. Create a new model with Name Channel Package Check.
2. Add a file collector to your model and load the data.
   1. PhixFlow displays a form for the new file collector. Set Name to Customer Care Updates.
   2. In the model, hover over the Channel Package Check file collector to display the context toolbar.
   3. Click  Upload Managed File. 
   4.  Navigate to the directory <path>\train\inputData\ChannelPackages\CustomerCareUpdates.
   5. Select the file CustomerCareUpdates.txt. and clickUpload.
   6. PhixFlow adds a new stream to the model, called CustomerCareUpdates.
   7. In the model, hover over the new CustomerCareUpdates stream and click Run Analysis.
   8. Check the data is loaded. There should be 8 lines of data, with columns for Customer Ref, Sales Date and Package.
3. Add another file collector to your model and repeat the process described in step 2. This time:
   1. Set the file collector Name to Shop Updates.
   2. Upload <path>\train\inputData\ChannelPackages\ShopUpdates\ShopUpdates.txt.
   3. PhixFlow loads 7 rows of data to this stream.

Snapshot of the Channel Package Check model so far:

Image Added

Combine Data Sets

1. Create a new stream in your model.
   1. Hover over CustomerCareUpdates and click  Add a new Stream.
   2. Set the Name to  Combined Updates.
   3. Drag all attributes from CustomerCareUpdates into Combined Updates.
2. Save your model layout.
3. Add a pipe from the other stream.
   1. Hover over ShopUpdates and click  Add a new Connector.
   2. Click Combined Updates to link the pipe to the output stream.
4. Double-click on Combined Updates to open its configuration form and set the attribute expressions.
   PhixFlow automatically adds a reference to the input pipe name at the start of each expression. To make the union work, you need to update the expression for each attribute to remove the in. prefix. Change in.CustomerRef to CustomerRef.
5. Press  in the main stream configuration form.
6. Run analysis on Combined Updates.
7. Check that you have the correct number of records in this stream when the analysis is complete.
8. Check the data set you generated to make sure that every field in every output record has been populated.

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