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I want to export data from a thing's property.
I used the service "QueryNamedPropertyHistory".
I define a service named "GetMyProperty" to pass parameters to the "PropertyNames" of "QueryNamedPropertyHistory".
Through the above i want to assign the properties which will be exported.
The error is "Unable to Invoke Service QueryNamedPropertyHistoy". It seems that the parameters isn't passed successfully by the service "GetMyProperty".
In this picture, you can see that I assign properties in list and add them to the table in the right. The conent in the table was listed by using the service "GetMyProperty".
This picture will show you the connects about QueryNamedPropertyHistory in the Mashup Builder.
Wish your help!