Universitas Ciputra issues various types of letters that have different functions and purposes, these letters can be referred to as work product documents. These types of letters include Decree Letters, Power of Attorney Letters, Agreement Letters, Outgoing Letters, Statement Letters, Assignment Letters, Warning Letters, and Statement Letters. Each letter has a specific issuance procedure and level of authority, which reflects its important role in supporting the organization's operations.

For example, a Decree is used to set policies, change organizational structures, or appoint positions, which is usually issued by the Rector or Dean. Meanwhile, a Letter of Assignment serves to mandate a person or group to carry out a specific task, with the details of the assignment varying depending on the scope, ranging from the faculty level to across departments. Statement Letters and Certificate Letters focus more on attesting to certain individual conditions or activities.