Data 360 Consultant Act ON Data Practice Question
A Data Cloud Consultant is configuring a Data Cloud Activation to send audience segments to Marketing Cloud Engagement via Contact Builder. The consultant notices that the activation is failing because the Contact Key mapping is missing. What is the required step to resolve this issue in Data Cloud?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Map the Data Cloud Primary Key to the Marketing Cloud Contact Key within the Activation Target configuration.
To activate data to Marketing Cloud Engagement, the Activation Target must correctly map the Data Cloud Individual or Contact DMO primary key to the Subscriber Key or Contact Key in Marketing Cloud Engagement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create a Calculated Insight that aggregates the Contact Key before creating the activation segment.
Why it's wrong here
Incorrect. Calculated Insights are used for metric calculation, not for mapping platform keys during activation.
- ✗
Modify the Data Stream ingestion mapping to automatically designate the Subscriber Key as the primary key.
Why it's wrong here
Incorrect. Ingestion mappings define data source to DMO alignment, whereas Activation Targets handle platform-specific key mapping.
- ✓
Map the Data Cloud Primary Key to the Marketing Cloud Contact Key within the Activation Target configuration.
Why this is correct
Correct. The Activation Target must explicitly map the primary identifier to the target platform key field.
- ✗
Rebuild the Segment definition to include the Subscriber Key attribute as an inclusion criterion.
Why it's wrong here
Incorrect. Segments define audience membership, not platform authentication or key mapping rules.
Visual reference
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Salesforce exam blueprint
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