QQMA0011 - NotificatioN task User Exit - Dependencies

Dear All

Please refer to my initial question:

http://scn.sap.com/message/15149603

Jogeswara Rao Kavala had a very nice input on that question.Now the next question is about building relationships between the fields that are using this custom screen. Assume that I will have two fields:

Field 1 = Type of the Data

Possible entries which should be picked up from a pick list are - Equipment/Functional Location/Material etc.

Field 2= Data value - In this field, depending on the selection from field 1, I would like to select an equipment, FL, or a material. Therefore the search helps must work accordingly. And the data entry check must work accordingly too.

Is this possible? I know that similar cases was developed for the SAP Standard new Web Dynpro Applications. But I am not sure whether this is something doable by using a user-exit?

Regards

GA