The communicationMessage will be used to communicate with an client through Harmony.
        communicationMessage will be used to; communicate with CashDesk clients, warning, alerting and/or informing them about recent activities.
        
        
            communicationMessage
            
                
                    | Field | 
                    Type | 
                    Required | 
                    Description | 
                
                
                    | token | 
                    guid | 
                    false | 
                    Unique identifier of the message | 
                
                
                    | taskToken | 
                    guid | 
                    false | 
                    Unique reference to the unit of work | 
                
                
                    | html | 
                    string | 
                    true | 
                    Body of the message | 
                
                
                    | isRequiredToRead | 
                    bool | 
                    true | 
                    Specifies if the message is mandatory to read. For example; used to inform about a general system failure | 
                
                
                    | machineName | 
                    string | 
                    true | 
                    Name of the machine that is targeted. If no machine name is specified. All the machines will show this message. | 
                
                
                    | isEmergency | 
                    bool | 
                    true | 
                    Specifies if the message is an emergency. | 
                
                
                    | title | 
                    string | 
                    true | 
                    Title of the message | 
                
                
                    | expiresAtDateTime | 
                    datetime | 
                    true | 
                    How long the message will be valid. Used to dispose messages no longer relevant like temporary failure of a services |