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Salesforce Plat-Admn-201 Exam - Topic 6 Question 8 Discussion

A Platform Administrator at Cloud Kicks is trying to set up a new user but receives an error about a duplicate username when trying to save the user record. What is causing this error to happen?
C) The username must be unique across all Salesforce orgs.
A) The username was not configured in the format of an email address.
B) The email address and username must be unique across all Salesforce orgs.
D) The username has a restricted domain name within it.

Salesforce Plat-Admn-201 Exam - Topic 6 Question 8 Discussion

Actual exam question for Salesforce's Plat-Admn-201 exam
Question #: 8
Topic #: 6
[All Plat-Admn-201 Questions]

A Platform Administrator at Cloud Kicks is trying to set up a new user but receives an error about a duplicate username when trying to save the user record. What is causing this error to happen?

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Suggested Answer: C

In the Salesforce architecture, the Username is a globally unique identifier4949. This means that once a username (e.g., admin@cloudkicks.com) is used in any Salesforce organization (including production, sandboxes, and developer editions), it cannot be used again in any other organization worldwide. This often causes confusion because while an Email Address can be reused across multiple Salesforce users and orgs, the Username must remain distinct51. If an administrator receives a duplicate username error, it means the desired username is already taken by a user in another instance of Salesforce. 54Option A is incorrect because usernames must be in email format, but they don't have to be a valid functioning email. Option B is incorrect because only the username has this global uniqueness requirement, not the email address.


by Carrol at Apr 02, 2026, 05:39 AM

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Van
4 days ago
I agree, C makes sense. Can't have duplicates.
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Aracelis
9 days ago
I think it's C. Unique usernames are crucial.
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Mira
14 days ago
A is not the issue here; it's all about uniqueness!
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Cruz
19 days ago
Surprised to see this! I always thought it was just the email that needed to be unique.
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Laura
24 days ago
Definitely C! It's a common mistake.
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Sylvia
2 months ago
I thought usernames could be the same in different orgs?
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Carin
3 months ago
C is correct! Usernames need to be unique across all orgs.
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Darnell
3 months ago
I wonder if the error could also be due to a restricted domain name in the username, but I can't recall the specifics on that.
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Fletcher
3 months ago
I practiced a similar question, and I believe the uniqueness of the username is key, so I would lean towards option C as well.
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Kenny
4 months ago
I'm not entirely sure, but I remember something about usernames needing to be in email format. Could that be related?
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Robt
4 months ago
I think the error is because the username must be unique across all Salesforce orgs, so it might be option C?
upvoted 0 times
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