.. image:: ../images/system-dialogues/DeployResponseStored.png
-3.4 Undeploy Automation Composition Instance
+3.4 Update Automation Composition Instance
+------------------------------------------
+The user requests the AC Instance to be updated using a REST endpoint. The ACM Runtime orders the AC Instance to be updated.
+
+.. image:: ../images/system-dialogues/UpdateAcInstance.png
+
+Each participant updates its AC Element from the AC Instance
+
+.. image:: ../images/system-dialogues/UpdateAcElements.png
+
+The ACM Runtime receives and stores the responses.
+
+.. image:: ../images/system-dialogues/UpdateAcElementsResponse.png
+
+3.5 Undeploy Automation Composition Instance
--------------------------------------------
The user requests the AC Instance to be undeployed using a REST endpoint. The ACM Runtime orders the AC Instance to be undeployed.
.. image:: ../images/system-dialogues/UndeployResponseStored.png
-3.5 Read Automation Composition Instances
+3.6 Read Automation Composition Instances
-----------------------------------------
.. image:: ../images/system-dialogues/ReadAcInstances.png
-3.6 Unlock Automation Composition Instance
+3.7 Unlock Automation Composition Instance
------------------------------------------
The user requests the AC Instance to be unlocked using a REST endpoint. The ACM Runtime orders the AC Instance to be unlocked on Participants.
.. image:: ../images/system-dialogues/UnlockResponseStored.png
-3.7 Lock Automation Composition Instance
+3.8 Lock Automation Composition Instance
----------------------------------------
The user requests the AC Instance to be locked using a REST endpoint. The ACM Runtime orders the AC Instance to be locked on Participants.
.. image:: ../images/system-dialogues/LockResponseStored.png
-3.8 Update Operational State on Automation Composition Instance
+3.9 Update Operational State on Automation Composition Instance
---------------------------------------------------------------
.. image:: ../images/system-dialogues/UpdateOperationalState.png
-3.9 Update Usage State on Automation Composition Instance
----------------------------------------------------------
+3.10 Update Usage State on Automation Composition Instance
+----------------------------------------------------------
.. image:: ../images/system-dialogues/UpdateUsageState.png