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Salesforce MCE-Dev-201 Exam - Topic 2 Question 14 Discussion

A developer identified a use case where a triggeredsend of an email is needed. The developer already successfully set up authentication with a Client ID and Client Secret has used them in several REST calls. When the REST call is made, a "401 Unauthorized" error is returned. What is the first thing the developer should check?
A) The send permissions have been granted for the Client ID and Client Secret within Installed Packages.
B) The email interaction has been started
C) The automation permissions have been granted for the Client ID and Client Secret within Installed Packages.
D) The email interaction has been published.

Salesforce MCE-Dev-201 Exam - Topic 2 Question 14 Discussion

Actual exam question for Salesforce's MCE-Dev-201 exam
Question #: 14
Topic #: 2
[All MCE-Dev-201 Questions]

A developer identified a use case where a triggeredsend of an email is needed. The developer already successfully set up authentication with a Client ID and Client Secret has used them in several REST calls. When the REST call is made, a "401 Unauthorized" error is returned. What is the first thing the developer should check?

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Suggested Answer: A

A '401 Unauthorized' error typically indicates an issue with authentication or permissions. Since the Client ID and Client Secret have been successfully used in other REST calls, the most likely cause is insufficient permissions for sending emails.

Check Send Permissions: Ensure that the appropriate permissions for sending emails have been granted to the Client ID and Client Secret in the Installed Packages. Without these permissions, the API call will fail with a 401 error.

: Salesforce Installed Packages and Permissions


by Precious at Jun 28, 2026, 05:15 AM

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Gerald
5 days ago
Check the send permissions for the Client ID and Secret.
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Rosita
10 days ago
I’m a bit confused, but I think the automation permissions could also be relevant. I should probably review that part again.
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Fatima
15 days ago
I recall a similar scenario where permissions were the issue. Maybe checking the send permissions is a good starting point?
upvoted 0 times
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Rossana
20 days ago
I'm not entirely sure, but I feel like the email interaction needs to be published before sending. That could be a reason for the 401 error.
upvoted 0 times
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Denae
25 days ago
I think the first thing to check might be the permissions for the Client ID and Client Secret. I remember something about that from a practice question.
upvoted 0 times
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