Final answer:
Customers using the ServiceNow sn_customerservice.customer case management system can typically view a list of cases they created or that are associated with their account, with permissions controlled by roles and access control lists.
Step-by-step explanation:
In the context of the ServiceNow platform, customers using the sn_customerservice.customer case management system generally have access to view a list of cases that are specifically relevant to them. Usually, a customer is able to see cases that they have created or cases that are directly related to their account. ServiceNow provides roles and access control lists (ACLs) to ensure that customers only see the appropriate data. It's also possible to configure these permissions so that customers might be able to see cases opened by other customers within the same company, depending on the organization's specific setup and privacy requirements.