Hi, There is a custom function "isusernametaken(Username)" where

Hi,
There is a custom function "isusernametaken(Username)" where the parameter Username is case-sensitive.
However, We have users both in lower and upper cases. Eg:- abc,aaa, AME,etc.,
In this case, if we pass "ABC" instead of "abc" from the UI, it says that the user is invalid(because of case-sensitivity).
If we convert the user to lower case and check the condition, then the user "AME" would become invalid(as user AME is already stored in upper case).
Do we have any other function which is case-insensitive?
How can we handle this situation.
Awaiting your early inputs!!!
...

OriginalPostID-104622

OriginalPostID-104622