Data Management Capabilities > Managing Part Structures > Examples and Best Practices for Advanced Selection Logic > About Releasing a Configurable Product Structure > Using a Default Baseline
Using a Default Baseline
With Windchill, you can restrict access to making changes to the configuration specifications for configurable product structures for certain users.
To establish a group of users who are only authorized to use approved configurable product structures:
Create a profile and ensure that the option Select Configuration Specifications for Generic Parts is not selected, as shown in the following figure.
When this option is enabled, the user can choose any configuration specification for a configurable product structure, including the latest available parts. This setting is suggested for users who develop and manage product structures.
When this option is disabled, the user can only use the default baseline for a configurable product structure. This setting is suggested for users who are only authorized to create variant product structures from approved configurable product structures.