Can you use ConfigurationManager to suppress part in specific assembly?

I have an assembly with multiple configurations.  I want to suppress a specific part in a specific configuration.

This is my code:

     Dim vConfParam(0) As Object

     Dim vConfValue(0) As Object

     vConfParam(0) = "\$STATE@screw<1>"

     vConfValue(0) = "S"

     bRet = swModel.ConfigurationManager.SetConfigurationParams(configurationName, vConfParam, vConfValue)

This always returns false.

My vConfParam and vConfValue arrays are setup to look just like they do when they come from bRet = swConfigMgr.GetConfigurationParams(activeConfigName, vConfParam, vConfValue)

Does the SetConfigurationParams require different arrays than GetConfigurationParams gives?

SolidworksApi/macros