An OmniStudio Developer is defining a formula in a Data Mapper to create a unique...

After defining a formula, the result must be stored and made available in the Data Mapper output structure. In the current Data Mapper design pattern, the formula result path creates a JSON node, and the developer then maps that result into the final output through the mapping configuration. This is why option B is the best answer: the formula is not useful to downstream actions until it is mapped to the required target output. The Extract tab is used to define source data retrieval, not to map formula results. The Output tab applies to specific Extract-style mappings in older terminology, but the question uses the generic Data Mapper mapping workflow. The essential step is to map the formula result into the JSON.

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