Possible enumeration values:

NameValueDescription
Success

0

CategoryNotFound

1

NewsletterNotFound

4

AuthFailure

5

EmailAlreadyExists

6

EmailInvalidFormat

7

EmailNotAllowed

8

PasswordInvalidFormat

9

InvalidSignUpInformation

10

InvalidUserName

11

NotRegistered

12

UserNameExists

13

WrongParameters

14

UserOperationFailed

15

QuestionNotFound

22

UserNotFound

23

NotAllowed

24

ResourceNotFound

25

BookNotFound

26

UserStatsNotFound

27

UnknownError

99