deRows len: 0<br><br>{"message":"Error executing retrieve call.","description":"ExactTarget.OMM.FunctionExecutionException: Error executing retrieve call.\r\n  Error Code: OMM_FUNC_CONTEXT_ERR\r\n - from Jint --> \r\n\r\n --- inner exception 1---\r\n\r\nExactTarget.OMM.InvalidFunctionParameterException: Null filter value supplied.\r\n  Error Code: OMM_FUNC_CONTEXT_ERR\r\n - from OMMCommon\r\n\r\n\r\n\r\n"}