How to handle multiple Sender List in Apex.

Question

Hi All,
In our application we had created a Email configuration, the mail will be triggred based on selection of a particular "Group" it will redirect to specfic distribution list.
Here is the Snippet code for the above one.
    if   upper(:P1_ENG_GRP)=upper('Products') then
           lv_to_email_id :='[email protected]';
       elsif upper(:P1_ENG_GRP)=upper('Materials') then
            lv_to_email_id :='[email protected]';
        else
             lv_to_email_id :=NULL; 
  end if;We have groups upto 3 items as
P1_ENG_GRP2
P1_ENG_GRP3
Currently, when filing notes in the form. The email distribution is triggered by whatever ‘group' is selected.
We experienced a case today where there were two groups(products & materials) represented at a meeting and we want to file one note.
How we can handle the above scenerio in the snippet code.Thanks,
Anoo..

Answer 1

Thanks Andy, so as per the suggestion we have to handle the above snippet as individual if block statements as i had shown below.
But in this case how we show the else part as NULL.
correct me if my understanding is wrong.
if  'Products' in (:P1_ENG_GRP1, :P1_ENG_GRP2, :P_ENG_GRP3) then
                lv_to_email_id :='[email protected]';
end if;
if  'Materials' in (:P1_ENG_GRP1, :P1_ENG_GRP2, :P_ENG_GRP3) then
           lv_to_email_id :='[email protected]';
end if;Thanks,
Anoo..