I have set the default allocation on the Team Object to equal 0%. When adding a resource to a plan via the classic UX, the default allocation goes to 0%. However, using Open Workbench, adding a resource to the plan, the default allocation goes to 100%.
Release : 15.6.1
Component : CA PPM FINANCIAL MANAGEMENT
This is working as designed, OWB is not be aware of default allocation setup on the studio side. The only workaround would be manual for user to change Availability for resource in OWB, if user double click on the resource, the Availability is 8 (which is the equivalent to 100% allocation in Clarity), so user can change it to 0.