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Salesforce MCE-Dev-201 Exam - Topic 5 Question 10 Discussion

A developer needs to use the 'contacts/ route of the REST API to update records in a data extension.What should the developer verify before making the API call?
D) The data extension should be linked in an AttributeGroup in Contact Builder.
A) Each contact should alreadyexist in All Subscribers.
B) Journey Builder should be configured to use the data extension.
C) Contact Key should be equal to Subscriber Key in the underlying data extensions to ensure proper joining.

Salesforce MCE-Dev-201 Exam - Topic 5 Question 10 Discussion

Actual exam question for Salesforce's MCE-Dev-201 exam
Question #: 10
Topic #: 5
[All MCE-Dev-201 Questions]

A developer needs to use the 'contacts/ route of the REST API to update records in a data extension.

What should the developer verify before making the API call?

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Suggested Answer: D

Before using the 'contacts/' route of the REST API to update records in a data extension, the developer should verify that the data extension should be linked in an AttributeGroup in Contact Builder (D). This ensures that the data extension is part of the contact model and can be accessed and updated using the REST API.


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by Gerald at May 05, 2026, 11:07 AM

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Christa
1 month ago
I practiced a similar question where linking the data extension in an Attribute Group was crucial. I wonder if that's relevant here too.
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Moon
1 month ago
I think it's important to check if the Contact Key matches the Subscriber Key, but I can't recall if that's always necessary for updates.
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Kaitlyn
2 months ago
I remember something about needing the contact to exist in All Subscribers, but I'm not sure if that's a strict requirement for the API call.
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