Hi Hasan,
as stated above, I know that customzing node and I have read the documentation before my posting, but as far as I understand (and tested) the Plug (and so the popup) is called BEFORE the action takes place!! You even have to trigger the action again by using CL_CRM_UIU_ACTION_CALL_VIEWS=>ACTION_TRIGGER_FROM_VIEW. This does not make sense to me at all: if you have an action and you have to decide WITHIN this action if you have to issue a (or even worser two or three) Popup this way do not work out. Instead you will have to transfer the entire intelligence of the action into the popup because the action has no possibility to interact with the user.
Dont you think?
Regards,
Max