Approval workflow available in create shipment; or in pick slip confirm

Summary:

There is an approval workflow when I create a shipment, o when I pick slip confirm, or when I ship confirm?

Content (please ensure you mask any confidential information):

The business requires an approval flow at the time of shipment, either when the shipment is created, or the pick slip is confirmed, or the shipment is confirmed.

Version (include the version you are using, if applicable):

11.13.23.07.0

Code Snippet (add any code snippets that support your topic, if applicable):