# Change the IDOL Reference Field

When IDOL Data Admin requests a document from IDOL by its reference, it specifies that the reference value it requests is from the `DREREFERENCE` field. Specifying the field ensures that it retrieves the correct document in cases where your documents have multiple reference fields (for example, if you index subfiles with a reference to the parent file).

In most systems, the IDOL Content component uses the default reference field `DREREFERENCE` as the main reference for your documents. If you use a different field as your main reference, you can modify the reference field that IDOL Data Admin requests, by updating the `referenceField` property in `config.json`.

To change the IDOL reference field

1. Go to the IDOL Data Admin home directory.

2. Open `config.json` in a text editor.

3. Find the `referenceField` property, or add it if it does not exist, and set it to the name of the reference field that you want to use. For example:

       "referenceField": "MainReference"

4. Restart IDOL Data Admin to apply your configuration changes.

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