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.
You can resolve tasks by reviewing tasks and then taking an action. The possible actions that you can perform depends on the selected tasks and your ActiveVOS workflows.
When you resolve multiple tasks, you can only take an action that is shared by all the selected tasks. To increase the amount of possible actions that you can perform, review tasks of the same task type.