Parallel Tasks but Optional

Question

Hello Everyone.
I have a requirement where I need to fork 5 parallel tasks ( all different subprocess), wait for 4 to finish and complete the join but let the 5th one be optional. It means that The join does not need for the 5th task to be completed. The 5th subprocess again forks off multiple tasks ( all same task this time) which may be treated as separate tasks and has no dependency on each other, can be performed at any time. This means that they dont have to join for the 5th subprocess to be end.

Answer 1

If you just want any 4 of the 5 to complete before continuing, add a new integer instance variable. In your Join activity, add this logic:
counter = counter + 1
if counter > 3 then
    action = RELEASE
end
  If it's one specific subprocess you do not want to wait for, create 4 Boolean instance variables that represent each of the manditory subprocesses. Each of these would be set to true as their copy spawned by the Split reaches the Join activity. Your logic in the Join would look like this:
case copy.activity.source.id
  when "IdOfSubflowActivity1" then
       flag1 = true
  when "IdOfSubflowActivity2" then
       flag2 = true
  when "IdOfSubflowActivity3" then
       flag3 = true
  when "IdOfSubflowActivity4" then
       flag4 = true
end
if flag1 && flag2 && flag3 && flag4 then
    action = RELEASE
endDan