# Configuring Substation ES Transformer

You can configure Substation ES Transformer from the Transform Configuration panel.

To start the Transformer DCUI panel, see Main Entry Panel for details. The following examples show how to configure Substation ES Transformer:

- Defining the Back-End System (BES)
- Defining Network Parameters (ESB Endpoint)
- Using the COBOL Copybook Converter
- Defining Messages
- Defining Buffers
- Defining Conversion Rules
- Defining Recipes and Defining Triggers
- Defining Groups

After doing each task, you exit back to the Transformer Configuration panel. You can review the messages displayed in the upper-right corner of the panel to verify your operations:

- If your changes have been saved successfully, the message `Changes saved` is displayed.
- If you cancel your operation with the CAN command, the message `Changes Cancelled` is displayed.
- If you make a wrong selection while editing a panel, a related error message is displayed.
- If a file opened in read-only mode is edited, the message `Change and Readonly` is displayed.

For more information about the Transformer Configuration panel, see Transformer Configuration Panel.

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