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@startuml
participant ACM_Runtime
participant Participant
participant Participant_API

ACM_Runtime -> Participant: [ASYNC] Undeploy AC Element Instances for this AC Instance

loop over AC Element Instances in AC Instance
 alt Does the primed Participant ID on this AC Element Instance\nmatch my Participant ID?
  alt Does this AC Element Instance exist?
   ACM_Runtime <- Participant: [ASYNC] WARN: AC Element does not exist
  else Is this administrative state of this AC Element Instance LOCKED
   Participant -> Participant_API: Undeploy AC Element Instance
   activate Participant_API
   Participant <- Participant_API: Undeploy AC Element Instance Response
   deactivate Participant_API
   alt AC Element undeployed successfully
    ACM_Runtime <- Participant: [ASYNC] INFO: AC Element undeployed successfully
   else
note left   ACM_Runtime <- Participant: [ASYNC] ERROR: AC Element was not undeployedof Participant
    Undeploy always returns success
   end note
  else
    ACM_Runtime <- Participant: [ASYNC] WARN: AC Element is already undeployed
  end
 else
  note left of Participant
   Ignore this AC Element instance as its for another participant 
  end note
 end
end

@enduml