Pick one use case—maybe "Past Purchases" or "Certifications." Build the object, import 50 test records, and build a single Smart List to filter by it. Once you see the power of Member of Custom Object > Product Name contains 'Premium' , you will never go back to comma-separated text fields again.
While Custom Objects offer immense power, they require careful governance and technical planning. Unlike standard fields, Custom Objects are typically populated via API integrations from a CRM (like Salesforce) or a data warehouse. This requires tight collaboration between marketing operations and IT teams to ensure data mapping is accurate. marketo custom objects
: These act as unique identifiers (e.g., a VIN for a car object or a Transaction ID for a purchase) to prevent duplicate records during updates. Common Use Cases Common Use Cases