A developer configures a FlexCard with a Data Mapper data source that uses the params.id as an input. When the developer clicks "View Data" on the FlexCard, valid data displays. However, when the developer previews the layout, the FlexCard does not display.
What could cause this error?
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A developer needs to create DataRaptor to retrieve the name of an account for a contact.
Following best practices, how should a developer configure the extraction steps?