Topic: Unable to create new user – Usernames can contain only letters, etc. · BuddyPress.org
1. Username: a. Type: text b. A username should only | Chegg.com
Usernames can only use letters, numbers, underscoresand periods.instgram - YouTube
IRCTC Rail Connect Username Select Problem || Username is Already Registered Problem solve - YouTube
Text Box Says This field can only contain letters
username validation message is hard to understand; need clearer general wording · Issue #3524 · scratchfoundation/scratch-www · GitHub
YouTube Handle Fix can only contain letters, numbers, periods (.) dashes and underscores Problem - YouTube
Username can only contain alphanumeric characters - Bug Reports - Replit Ask
![500: [ { "validation": "regex", "code": "invalid_string", "message": "Username can only contain letters, numbers, and underscores", "path": [ "username" ] } ] | Mapmelon](https://www.mapmelon.com/img/error-melo.svg "500: [ { \"validation\": \"regex\", \"code\": \"invalid_string\", \"message\": \"Username can only contain letters, numbers, and underscores\", \"path\": [ \"username\" ] } ] | Mapmelon")
500: [ { "validation": "regex", "code": "invalid_string", "message": "Username can only contain letters, numbers, and underscores", "path": [ "username" ] } ] | Mapmelon
Username '' is invalid, can only contain letters or digits. Login. Identity. - Microsoft Q&A
Mistake in help text - should be underscore NOT hyphens · Issue #20 · backdrop-contrib/fanciblock · GitHub
How to Change Username on TikTok | Statusbrew
Username '' is invalid, can only contain letters or digits. Login. Identity. - Microsoft Q&A
Change Username | TDS Support | TDS Cable
Registration form incorrectly indicates that "@" is allowed in username · Issue #1258 · MTG/freesound · 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
Username '' is invalid, can only contain letters or digits. Login. Identity. - Microsoft Q&A
Update Your Forum Username - Real Digital Forum
How to change your TikTok username and nickname - Android Authority
Mistake in help text - should be underscore NOT hyphens · Issue #20 · backdrop-contrib/fanciblock · GitHub
Regex validaiton help - Need help - Bubble Forum
How to Change Your Username - SpanishDictionary.com Support
Mentions in dscout Live – dscout
Custom validators - Formsort
firebase realtime database - Invalid field name "Name ". Fields must contain only letters, numbers, and underscores, start with a letter or underscore, and be at most 128 char - Stack Overflow
