BPF email notification issue

Hi Experts,

Cost Center A's "Performer" Property has John, Jane and Helen. And none of them is approver for Cost Centre A.

On BW side, BPF, email templates are displayed in the screenshot.

BPF "forecasting" has an activity requires performer to participate in the forecasting and approval process.

Jane and John received email notification from Cost Centre A. From transaction code SOST, I can see that emails were sent to Jane and John using smart form template UJB_EMAIL_TMPL_11 (Budgeting monitoring forecast for your review and update or approval). But user Helen who is also a performer for Cost Centre A did not receive email from this smartform UJB_EMAIL_TMPL_11. Therefore, Helen did not receive email notification.

I am trying to understand why Helen did not receive email notification for cost centre A; but other performers Jane and John have received.

Is there any way to find out which smartform template is used by a certain BPF (a particular activity)?

Any advice is much appreciated.

Thanks,

Jingjing Zhao