export enum ServiceErrorCode {
    Unknown = 0,

    InvalidDependencies = 1,
    InvalidData = 2,
    NotFound = 3,
    DataAlreadyExists = 4,
    UnableToAdd = 5,
    UnableToDelete = 6,

    InvalidUser = 7,

    ConnectionFailed = 8,
    Timeout = 9,
    MailError = 10
}