Error converting initialization parameter to correct data type for constructor parameter.
In the initialization properties for the External Procedure transformation, you specified a parameter that the Integration Service cannot convert to the COM datatype for the constructor in the external procedure. Before the Integration Service calls the constructor in the external procedure, it tries to convert the initialization parameters in the External Procedure transformation to the required COM datatypes.
Edit the parameters in the Initialization Properties tab of the External Procedure transformation. Enter values that the Integration Service can convert to the required COM datatypes for the constructor.