How can I call a variant screen?

Hi! I work with SAP SRM 7.2

I created a variant screen for Shopping Cart by Component Configuration using FPM_GAF_COMPONENT and /SAPSRM/WDCC_FPM_GAF_SC.

How can I call the custom variant screen?

I understood that the BAPI “BBP_SCREENVARIANT” doesn’t work in SRM 7.0… is it true?

Thanks a lot

  Federico