A Marketing Object is the most efficient solution when marketers have standalone structured data that is needed for personalization but doesn't need to become part of the enterprise Data 360 customer model. Salesforce allows users to create a Marketing Object directly by uploading a CSV file. The platform creates the object and loads the data in a single operation, automatically inferring supported field types from the uploaded columns.

Salesforce specifically describes Marketing Objects as appropriate for product information, reference data, content variations, and personalized campaign data . The information stored in them can then be retrieved from Marketing Cloud Next content by using Handlebars or AMPscript.

Creating a CRM custom object introduces unnecessary CRM configuration for data that exists only to support a one-time marketing campaign. Similarly, creating a Data 360 data stream and mapping it to a DMO adds ingestion, mapping, processing, and governance overhead that isn't justified by this isolated personalization requirement.

Therefore, A provides the simplest marketer-controlled architecture while maintaining the data in Marketing Cloud Next.

The uploaded master bank also keys A.

Study Guide Reference: Data Modeling, Identity Resolution and Segmentation → Marketing Objects → CSV Import and Message Personalization.

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