![MDL-16919] Administration: Allow username to contain an underscore - Moodle Tracker](https://tracker.moodle.org/secure/attachment/19044/upload_validation2.png "MDL-16919] Administration: Allow username to contain an underscore - Moodle Tracker")
MDL-16919] Administration: Allow username to contain an underscore - Moodle Tracker
Username '' is invalid, can only contain letters or digits. Login. Identity. - Microsoft Q&A
![MDL-16919] Administration: Allow username to contain an underscore - Moodle Tracker](https://tracker.moodle.org/secure/attachment/19043/upload_validation1.png "MDL-16919] Administration: Allow username to contain an underscore - Moodle Tracker")
MDL-16919] Administration: Allow username to contain an underscore - Moodle Tracker
username validation message is hard to understand; need clearer general wording · Issue #3524 · LLK/scratch-www · GitHub
1. Username: a. Type: text b. A username should only | Chegg.com
IRCTC Rail Connect Username Select Problem || Username is Already Registered Problem solve - YouTube
How to change your TikTok username and nickname - Android Authority
1. Username: a. Type: text b. A username should only | Chegg.com
How to change your TikTok username | Mashable
How to sign up for Linode hosting
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Instagram Username Can Only Contain Letters, Numbers, Underscores & Periods - YouTube
Username can support more languages or custom settings - ux - Discourse Meta
Fix Password Must Contain Letters and Digits - YouTube
Mistake in help text - should be underscore NOT hyphens · Issue #20 · backdrop-contrib/fanciblock · GitHub
![Machine Name element description should allow for cases where machine name uses hyphens [#3052479] | Drupal.org](https://www.drupal.org/files/issues/2019-05-03/417EDA62-F895-4FD0-BFF2-0B707C4E42A5.jpg "Machine Name element description should allow for cases where machine name uses hyphens [#3052479] | Drupal.org")
Machine Name element description should allow for cases where machine name uses hyphens [#3052479] | Drupal.org
Fix Twitter Your Username Must be 15 Characters or Less and Contain Only Letter, Number, Underscores - YouTube
Fix Instagram Username Can Only Use Letters Digits, Underscore And Full Stops. Problem Solve - YouTube
Text Box Says This field can only contain letters
Registration form incorrectly indicates that "@" is allowed in username · Issue #1258 · MTG/freesound · GitHub
Usernames can only include letter,numbers,dashes,underscores, and periods - YouTube
Overview of Custom Objects Challenge - Salesforce Developer Community
Mistake in help text - should be underscore NOT hyphens · Issue #20 · backdrop-contrib/fanciblock · GitHub
