Maintain 2 follow-up actions for 1 selected set when UD

Hi QM Gurus,

I want to trigger email when user set UD for Inspection lot.

In order to do that, I go to QS51 and maintain follow-up action for the selection set on catalog 3 - Usage Decision.

Unfortunately, another follow-up action was maintained for setting flag for batch after UD. That's why I cannot select Mail follow-up action.

Is there any way to trigger email after UD in this situation???? Please kindly share with me.

All distributions are highly appreciated.

Thanks so much.