string s2 = @" hello ""user"" this is a string"; but Regexs don't regard double quote as a special character at all - they do with backslash - so … I went to log in to the game for some multiplayer (yes, it's been a while). … Invalid Username: Your username contains invalid characters Restart your PC and try to create account and see what will happen. username contains invalid characters call of duty mobile. Replied on June 3, 2010. error as msg=invalid character $ in name — oracle-tech EPF UAN Helpdesk - Password,Mobile Number,Name issues When I submit the exact same code via SS, I get the following error, when the code is trying to write the WORK dataset out to a PDF using PROC REPORT. Click copy to use the generated name if you like it. OneDrive They are case-sensitive … Possibly you have logged in with your e-mail. Shining Sea Bikeway This code was submitted by Jon Peltier in the comments section and I loved the approach. In the image below, a user entered both valid and invalid characters.