Additional Fields to the Dispute Case Attributes

Hello Experts

I have a requirement to add the additional fields to the Dispute case attributes. New field is URL field (KNA1 - KNURL) need to be shown in the UDM_Dispute find Dispute Cases window. 

I am following the steps from the below Link:

http://help.sap.com/saphelp_47x200/helpdata/en/bc/296f5ed8c7d54a8abf9ecdd61f8ece/frameset.htm

Including Additional Fields in the Line Item List

To include additional fields of the dispute case in the line item list, you must have carried out the following steps in the Customizing phase:

       1.      Add an append structure to the structures RFPOS and RFPOSX (same as for the delivered structures FDM_AR_RFPOS and FDM_AR_RFPOSX).

       2.      Activate the structures and start program RFPOSXEXTEND to adjust the line item structure RFPOSXEXT.

       3.      If you only want to use fields from the structure FDM_UI_ATTRIBUTES in your append structure, you do not have to carry out any additional steps. If you use other fields, you have to enter values for these in the Business Transaction Event 0000 1650 (Publish & Subscribe interface).

       4.      To make the new fields visible in the ALV list immediately, you have to explicitly reset the buffer of the ALV field catalog. Start program BALVBUFDEL. Note that this program resets all ALV buffers on the application server concerned.

The fields from your append structure are then visible in the line item list.

Here the problem is with the 3rd step, What function module and which logic in that Function module need to be assigned in the FIBF T code for Business Transaction events 0000, 1650.

Please advise further soon

Thanks

Meenakshi.N