I've got this for you, @bvchief-comcast-. I'll share information about the QuickBooks Desktop (QBDT) Premier and Enterprise functions.

QBDT Premier is an advanced accounting software for small and midsize businesses (SMBs) that need industry-specific features. It supports up to 5 users. Also, it provides the following:

• Advanced, custom reporting.
• Expense tracking.
• Inventory tracking.
• Sales tax calculation.
• Financial statements.
• Robust internal file storage.
• Time tracking for billable hours.

The QBDT Enterprise is suitable for large and rapidly growing businesses to complete accounting solutions. It supports 1-40 active users and provides these features:

• Advanced inventory management.
• Customized job and project costing.
• More user licenses with custom permissions.
• Additional reporting options.
• Project tracking.
• Sales management.
• Advanced customization.
• Enhanced payroll.
• Time tracking.
• Financial performance reports.
• Equipment tracking.
• New product registration.

Moreover, it accommodates up to 100,000 inventory items across various industries. It's designed for businesses that need extensive functionality and customization options to manage their accounting, inventory, and reporting needs on a larger scale​. 

Please know that changes can happen with every product update.

You can check this article for more information: Why QuickBooks Desktop Enterprise.

Also, I'll add this article to help you learn how to activate QBDT on your computer: Install QuickBooks Desktop.

Let me know if you have additional questions about QBDT subscriptions by replying to this post. We'll reply as soon as possible. Keep safe, and have a good one.