how to do cascading drop down in BPM

Hello,

To accomplish the task you can use the filtration business rules like described in our SDK here. If you implement the same functionality, only the lookup values that are connected to another value chosen first, will be shown. For instance, you choose the state and then are able to select city only from the list of the cities that belong to the state.

Lisa

How can i load the data for drop down list from external web service? Whenever user selected? I mean, i won't retrieve data from database, but external web service.