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Parameter Values in WebServiceDataSource are not Passed Correctly


Product Version
Product Progress® Telerik® Reporting


Response status code does not indicate success: 400 (Bad Request)


If Parameters are used in the WebServiceDataSource, they are not translated into correct values in the resulting http request.

Cause\Possible Cause(s)

This is a bug introduced with the optimization Reuse data sources' raw data between the data items in a report from Telerik Reporting R3 2019 ( It is specific for this version.


The issue is fixed in the Internal Build Telerik Reporting R3 2019 SP1 You should upgrade to this version or downgrade to a version prior to R3 2019 to overcome the problem.

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