Many internal Salesforce applications now automatically run their business processes as the Platform Integration User. Some records show as being created, last modified, or owned by this user. Using the Platform Integration User is an expected part of how Salesforce maintains an org, much like the Automated Process user. The Platform Integration User is traceable in the debug logs.

To track the Platform Integration User in the debug logs, create a user trace flag, and select Platform Integration from the Traced Entity Type dropdown list. A trace flag is now set on the Platform Integration User.