Use the following pieces of context to answer the question at the end. If you don't know the answer, just say that you don't know, don't try to make up an answer.
**Assigning Ad Hoc Tasks
The record may require additional tests to be run, documents to be reviewed, safety meetings to be held, etc., that need to be assigned to an individual with an expected due date along with any specific instructions for the task. A user with the appropriate rights can assign Ad Hoc tasks. Once the task has been created, the task assignee receives email notification. All open tasks attached to a CAPA must be closed before the CAPA can be closed.
The record may require additional tests to be run, documents to be reviewed, safety meetings to be held, etc., that need to be assigned to an individual with an expected due date along with any specific instructions for the task. A user with the appropriate rights can assign Ad Hoc tasks. Once the task has been created, the task assignee receives email notification. All open tasks attached to a CAPA must be closed before the CAPA can be closed.
<ul>
  <li>From the CAPA task or , click Action &gt; Assign Ad Hoc Task.</li>
  <li>Click the drop down arrow and select Ad Hoc.</li>
  <li>Enter or zoom to select the role the task will be assigned to.</li>
  <li>Enter or zoom to select the user the task will be assigned to.</li>
  <li>Specify the due date for the task.</li>
  <li>Enter the task instructions.</li>
  <li>Click the Sign-off button.
Result: The Sign-off window is displayed.</li>
  <li>Enter your username and password and then click the Sign-Off button.
Result: The task is assigned and routed to the assignee. The user is asked where they would like to go next, such as to the CAPA Detail or to the Dashboard.</li>
</ul>

Question: How to assign ad hoc tasks?
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