Hi, I am using httpwrite function to write a data using web-service and it

I see the section Error Handling documentation as below
"Connector functions that write data do not return a response, so there is no mechanism to capture the error response and modify the user interface to hide a section or show a custom error message like there is for connector functions that read data." anyone has workaround?

I'm not aware of a way of getting a response in the situation you refer to - unless you use the out-of-the-box webservice node. You could also use the httppost function which is part the Send HTTP request plugin - forum.appian.com/.../summary - it works in a similar way, but returns a response as you're looking for.