I am working on our integration with xMatters. One of my goals is to have the ACK passed from xMatters into Orion include the user who initiated the ACK within xMatters. Today an inbound ACK is marked as being made by our xMatters User in Orion. xMatters does pass in a message that explains who did ACK in xMatters but that is not visible on the Active Alert List.
In the xMatters Integration Agent they do talk about acknowledgedBy and in the context where they use it, it refers to injecting the xMatters ACK into Orion. I also found in the REST · solarwinds/OrionSDK Wiki · GitHub but there it almost sounds like this is used to retrieve who ACK'd in Orion.
So is it possible to reflect on the Active Alerts List who exactly ACK'd the Alert within xMatters?