Final answer:
The term to describe a Salesperson's personal file on transactions is called a shadow file. It's an unofficial record kept by the salesperson to track sales activity.
Step-by-step explanation:
The term used to describe a Salesperson's personal file on completed or potential transactions is commonly known as a shadow file. A shadow file is an informal set of documents or notes kept by a salesperson, which includes details about customer interactions, deals in progress, completed transactions, and other relevant sales activity. It serves as a personal record-keeping system that complements the official files held by the company. Shadow files are typically unregulated by the company but can provide valuable insights and reminders for the salesperson to manage their accounts and responsibilities more effectively.