Error message displayed while creating new instance is misleading

[sachin235]

The valid instance name should contain 4 to 30 alphanumeric characters (only numbers and alphabets), without any spaces. The error message displayed on entering an invalid instance name is “Please enter a valid instance name using only letters and numbers, no spaces.”
This can be confusing when a user tries to enter instance name of less than 4 characters, as the instance name entered by user would be valid as per the error message.