Follow-on functions for production order

Dear experts,

In HUM discrete production, I am using TCODE COP1 to plan end product HUs. In the menu bar, I can see that there are two "follow-on functions": "Order confirmation" & "Goods receipt for order".

Actually, I cannot execute any of them because they are greyed-out. I assume that there should a customizing spot to activate these functions.

My questions are:

1. How can I activate these two functions?

2. Is it possible to make their execution automatic with the step of "planned HU creation"?

Thanks,