The documentation portal is undergoing maintenance. During this period, you can't create any new user credentials. If you do, you'll need to recreate the user credential after the maintenance period ends.
Effective in version 10.2.2, some data objects contain default header ports that represent metadata associated with events. For example, the timestamp port contains the time at which the event is generated. You can use the header ports to group and process the data.
For more information about the header ports, see the