sf org create user fails with DUPLICATE_COMM_NICKNAME

[epavlic-revenue]

Summary

When I run:

• sf org create user --definition-file config/my-user.json --set-unique-username, and
• username is specified in the definition file

Then, I get an exception:

DUPLICATE_COMM_NICKNAME, Duplicate Nickname.
Another user has already selected this nickname.
Please select another.: [CommunityNickname]

Setting the CommunityNickname directly also results in the exception

sf org create user --definition-file config/my-user.json --set-unique-username CommunityNickname=some-uuid

Removing the username from the definition file results in successful creation of users.

Steps To Reproduce

1. Create a definition file with a username set.
2. Run sf org create user --definition-file config/my-user.json --set-unique-username

Expected result

Create a user with a unique community nickname

Actual result

Throws an exception

Additional information

System Information

{
  "architecture": "darwin-arm64",
  "cliVersion": "@salesforce/cli/2.68.6",
  "nodeVersion": "node-v20.17.0",
  "osVersion": "Darwin 24.1.0",
  "rootPath": "/Users/ipavlic/.nvm/versions/node/v20.17.0/lib/node_modules/@salesforce/cli",
  "shell": "zsh",
  "pluginVersions": [
    "@oclif/plugin-autocomplete 3.2.10 (core)",
    "@oclif/plugin-commands 4.1.10 (core)",
    "@oclif/plugin-help 6.2.18 (core)",
    "@oclif/plugin-not-found 3.2.28 (core)",
    "@oclif/plugin-plugins 5.4.17 (core)",
    "@oclif/plugin-search 1.2.16 (core)",
    "@oclif/plugin-update 4.6.13 (core)",
    "@oclif/plugin-version 2.2.16 (core)",
    "@oclif/plugin-warn-if-update-available 3.1.23 (core)",
    "@oclif/plugin-which 3.2.19 (core)",
    "@salesforce/cli 2.68.6 (core)",
    "apex 3.6.3 (core)",
    "api 1.3.2 (core)",
    "auth 3.6.75 (core)",
    "data 3.11.4 (core)",
    "deploy-retrieve 3.15.13 (core)",
    "devops-center 1.2.10 (user) published 213 days ago (Thu May 09 2024) (latest is 1.2.26)",
    "info 3.4.21 (core)",
    "limits 3.3.40 (core)",
    "marketplace 1.3.6 (core)",
    "org 5.2.4 (core)",
    "packaging 2.9.3 (core)",
    "schema 3.3.42 (core)",
    "settings 2.4.6 (core)",
    "sobject 1.4.46 (core)",
    "telemetry 3.6.23 (core)",
    "templates 56.3.30 (core)",
    "trust 3.7.43 (core)",
    "user 3.6.3 (core)"
  ]
}

[github-actions]

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[mdonnalley]

@epavlic-revenue I think the error coming from the server might be misleading here.

The --set-unique-username simply appends the org id to the configured username (e.g. [email protected] -> [email protected]

So if you run sf user create multiple times with the same config, it's going to fail because you're attempting to create a second user with the exact same username as the first

[epavlic-revenue]

Thanks!