To address the business requirement where Cumulus Financial needs to keep business and personal loan records separate for legal reasons while still leveraging the same Contact DLO, the best solution is to use two data spaces . Here's why and how this works:

Understanding Data Spaces in Salesforce Data Cloud :Data spaces are logical containers within Salesforce Data Cloud that allow organizations to segment their data based on specific business needs, compliance requirements, or privacy regulations. They enable isolation of data processing and identity resolution rules while still allowing access to shared data objects like the Contact DLO.

Why Two Data Spaces?

By creating two data spaces (e.g., one for business loans and another for personal loans), Cumulus Financial can maintain separation between the two groups for legal compliance.

Both data spaces can reference the same Contact DLO, ensuring that individual customer data is not duplicated but is accessible in both contexts.

Identity resolution rules can be configured independently within each data space to ensure that the segmentation aligns with the legal requirements.

Steps to Implement This Solution :

Step 1: Navigate to the Data Spaces section in Salesforce Data Cloud.

Step 2: Create two new data spaces: one for "Business Loans" and another for "Personal Loans."

Step 3: Configure the identity resolution rules separately for each data space to ensure proper segmentation.

Step 4: Link the existing Contact DLO to both data spaces. This ensures that the same contact data is available in both contexts without duplication.

Step 5: Set up activation rules and permissions to ensure that data from one data space cannot inadvertently mix with the other.

Why Not Other Options?

A. Duplicate the Individual DMO: This would lead to unnecessary duplication of data and increase storage costs. It also introduces complexity in maintaining consistency across duplicated records.

B. Duplicate the Contact DLO: Similar to duplicating the DMO, this approach increases storage and maintenance overhead without solving the core issue of legal separation.

C. Create two identity resolution rules in the same data space: While this might seem like a viable option, it does not provide the required legal separation since both groups would still exist within the same data space.

By using two data spaces, Cumulus Financial achieves the necessary legal separation while maintaining efficiency and avoiding data redundancy.