For more information, please refer to this announcement explaining best practices for getting answers to questions.
How to Assign Performance Document to Primary Assignment Only
Summary:
Hi. The eligibility profile attached to our goal plans has 'Assignment to Use' set to 'Primary employee assignment only - enterprise' which only assigns it to the primary assignment of the employee even though the secondary assignment is also eligible. This is also what we want for performance documents.
My assumption is that since only the primary assignment has the assigned goal plan, then when I run the Eligibility Batch Process to assign the performance documents, then it will only be assigned to the primary assignment. Especially since there are multiple posts about not being able to assign the performance document without assigning the goal plans to the employees first