//Name 	 Get_value_from_task_or_workflow_UDF
//Description 	Gets the value of the task- or workflow-based custom field [Order Availability]
//Type 	Task / Custom Field Value - String

String fieldvalue = AdapterManager.getInstance().getSecuredUDFAdapterManager()
     .getTaskUDFValue(sc,task.getId(),"Order Availability");
if (fieldvalue == null)
   return "Unknown";
else
   return fieldvalue;