Updating Salesforce data from an OmniScript requires a write operation, so the correct tool is a Data Mapper Load. A Data Mapper Extract reads data from Salesforce; it cannot update the Contact record. A Data Mapper Transform only reshapes data between formats and does not perform the Salesforce database update. The Data Mapper Load should include the Contact identifier and the new Phone value so Salesforce can update the correct record. When upsert behavior is needed, the appropriate field mapping must identify the key used to determine whether the record already exists. The question asks specifically about changing a Contact phone number from an OmniScript, so the correct configuration is a Data Mapper Load with the RecordId/key and updated phone value.

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