Additional Quantity fields not showing in COPA assessment cycle (in Account based COPA)

Hi,

In Account based COPA, I have already done all the configuration and BAdI coding required for using the three Additional Quantity fields. So these fields are now correctly populated in KE24N line items.

But the problem is that, none of them are available as Receiver tracing factor in COPA assessment cycle (KEU1).

Could you please guide me how to use the Additional Quantity fields as Receiver tracing factor?

Thanks,
Lucy