Does anyone know how to implement Component: /SAPSRM/WDC_UI_BACKEND_SH

/SAPSRM/WDC_UI_BACKEND_SH allows SRM instance to call Back-End (i.e. ECC or ERP) search helps.

For example, I want to provide a search help for cost center (KOSTL). CSKS (cost center master) does not reside on SRM server.

I know how to build a custom search help to RFC over to ECC and get a list of cost centers (so don't reply with that stuff).

I want to know if anyone has implemented /SAPSRM/WDC_UI_BACKEND_SH in a custom development, and exactly what you did. I already tried the following:

- Added component usage of /SAPSRM/WDC_UI_BACKEND_SH (component controller and view)

- Added context SELECTION to my view

- added KOSTL attribute with KOSTL data element (dictionary search help) to my DATA context

- added assistance class /SAPSRM/CH_WD_UI_ASSISTANCE (not sure if that was necessary)

I know there must be some code missing to connect context elment SELECTION to my DATA attribute, but I cannot find it in looking at SAP code.

Like I said, I know how to do this from scratch code, but would like to know how to reuse the SAP component.

Thanks,

- Tim