Key figures & CO-PA

I'm getting my feet wet with CO-PA data in BW. Not going too bad... But I have this issue:

I've assigned 2 key figures in SBIW on R/3. One using an element already defined in our CO-PA & the other using the VVREV value field.

I created my data source (including the two key figures), replicated, created the infosource, and created & ran an infopack to bring the data to the PSA. The 2 key figures I assigned above are always brought in as zero, even when the VVREV field clearly contains data.

Any ideas on what I should look at?

Thanks,

Chris