If a department wishes to sell goods or services to individuals or entities outside the university, then it must become an external sales unit. For situations where a department only wishes to sell goods or services to other University departments, then it must become a service center. 

Relevant policies and descriptions
Policy Description
UTDBP3114: External Sales This policy explains requirements and responsibilities regarding external sales.

To begin the process of becoming an external sales unit, please complete the External Sales Application – Cost Center Request form. It must be completed and approved prior to the commencement of any external sales activity. The purpose of this form is to capture the essential information related to the pending business activity with external customers and identify potential risks before the activity begins.

Appendix I – External Sales Accounts Receivable Policy and Procedure