@startuml
autonumber
box Buyer
participant b as "Ordering"
     
box Seller TMF622
participant po as "ProductOrder"
participant apo as "AddProductOrderInformation"

     
b -> apo : POST AddProductOrderInformation ()
apo-->b : 201 Created (achnowledged)


apo -> b: POST AddProductOrderInformationStateChangeEvent (inProgress)
po -> b: POST ProductOrderAttributeValueChangeEvent
note over b, apo: note.text="MFH, 3. OG, links", note.@type=InstallationInstruction

apo -> b: POST AddProductOrderInformationStateChangeEvent (done)
@enduml