Odata Service Error

Hello Experts ,

I am having an issue regarding Odata service Execution from REST client .

Using Tcode SE80 and GWDataModel , I created a service based on RFC with a Query Operation . While Trying to execute the service from the REST client I am getting the following error .

Forsystem AliasI am using the software version asECC_604. I am having the Backend and Gatewayin the same system.

Thanks,

Uday.