Unable to set up Customer-Vendor Integration for MDG-C

Hi,

While trying to set up Customer-Vendor Integration for MDG-C, it throws up an error "Specify the key within the work area" in transaction FN_PPO_Viewcall, where Component is AP-MD and Business Process is CVI_01 and CVI_03. Screenshot attached.

Please advise if there is any prerequisite configuration missing?

Thanks,
Veena