@startuml
autonumber
box Buyer of new line
participant b as "Ordering"
box Seller TMF622
participant po as "ProductOrder"
box Buyer of old line
participant bo as "Ordering"
po -> b: POST ProductOrderAttributeValueChangeEvent()
note right: e.g.: expectedCompletionDate
po -> b: POST ProductOrderMilestoneEvent(orderConfirmationUpdate)
note right: ABM
altopt category=VBL or category=PV
po -> bo: POST ProductOrderAttributeValueChangeEvent()
note right: e.g.: expectedCompletionDate
po -> bo: POST ProductOrderMilestoneEvent(orderConfirmationUpdate)
note right: ABM-PV
end
@enduml | 