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

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

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?

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


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23 comments · newest first
IV
Ivette 2 days ago
Also, don’t forget to check if the email is published.
LI
Lindsay 7 days ago
Good luck! Let us know if you need more help.
DO
Dorinda 13 days ago
Got it! I’ll look into that.
LI
Lindsay 18 days ago
Exactly! If permissions aren't set, nothing will go through.
IV
Ivette 23 days ago
It’s where you manage API access. Check there first.
DO
Dorinda 28 days ago
I’m confused. What does "Installed Packages" mean?
LI
Lindsay 1 month ago
Right! A "401 Unauthorized" usually means access issues.
IV
Ivette 1 month ago
Agreed! Without proper permissions, it won’t work.
LI
Lindsay 1 month ago
I think it’s A. Permissions are crucial.
TE
Telma 2 months ago
D is important too, but A seems more likely here.
LI
Lisbeth 2 months ago
Wait, can you really get a 401 just from permissions?
JA
Jaime 2 months ago
I thought it might be B, but now I'm not so sure.
TA
Tamar 2 months ago
Definitely A! That's usually the issue.
ED
Edward 2 months ago
Check the send permissions for the Client ID and Secret.
JA
James 2 months ago
D seems important too, but I agree with A being the first step.
PE
Pearlie 3 months ago
Wait, can you really get a 401 just from permissions?
TO
Tonette 3 months ago
I thought it could be B, but now I'm not so sure.
JU
Julianna 3 months ago
Definitely A! That's usually the culprit.
GE
Gerald 3 months ago
Check the send permissions for the Client ID and Secret.
RO
Rosita 3 months ago
I’m a bit confused, but I think the automation permissions could also be relevant. I should probably review that part again.
FA
Fatima 4 months ago
I recall a similar scenario where permissions were the issue. Maybe checking the send permissions is a good starting point?
RO
Rossana 4 months 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.
DE
Denae 4 months 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.
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