According to the FlexCard Designer Overview page, one possible cause of a field showing only the label is that "the field name in the FlexCard state does not match the DataRaptor Extract's Output JSON Path name".

According to the FlexCard Designer Overview page, another possible cause of a field showing only the label is that "the field is null on the Salesforce record".

The child OmniScript must receive specific nodes from the parent OmniScript's data JSON, so the developer should pass them through Additional Input key/value pairs on the child OmniScript element. Additional Input is used to pass named values into an action or embedded component when the child process needs specific data from the current script context. ContextId would pass only a record identifier, not full Address and Contact JSON nodes. PreFill is used to populate data into an OmniScript, but the question asks which property on the child OmniScript element should be used to pass parent nodes. LWC Component Override is unrelated because it replaces rendering behavior rather than mapping parent script data. Therefore, Additional Input is the correct configuration.

This scenario relates to FlexCard preview behavior and data mapping issues.
* B. There is no Salesforce record for the FlexCard based on the RecordId in the layout ' s Test Data Source Settings - If the test record does not exist, the FlexCard will not display any data during preview. This is a common setup mistake.
* C. The Data Node field for the FlexCard is empty - The Data Node field must be set correctly to match the JSON node where the expected data resides. If it is empty or incorrect, the FlexCard won't bind data to UI elements.
Incorrect Options:
* A. Even if the RecordId is from a different record type, as long as the data structure aligns, it would still render; it's not a definitive reason for the card failing to display.
* D. Attributes are not required to display field values directly; they are used for passing data between cards or from context, not for direct field rendering.
Salesforce OmniStudio # FlexCard Data Source Setup & Troubleshooting