I acknowledge the need to be able to use products at their full capacity since after purchase, @adds. At the same time, let me share some insight about installing your version 19 Point of Sales (POS).

It's possible to install your POS on another computer even if you're using the same credentials or license. For guidance on how to seamlessly install this product, please visit this website: Downloads & Updates.

However, as of October 23, 2023, POS ver 19.0 is discontinued. Thus, you'll no longer be able to receive any security patches and updates from us. At the same time, these services will also stop:

• QuickBooks Point of Sale Payments
• QuickBooks Point of Sale Gift Card Service
• Mobile Sync
• Intuit Store Exchange
• Webgility E-commerce integration
• Support plans including live support (phone, email, chat)
• Vendor Lookup Service

Even after October 3, 2023, you can still use POS 19.0 without the mentioned services above. 

You can read this article for reference and additional information: QuickBooks Desktop Point of Sale discontinuation.

If you want to learn more about the discontinuation of POS, you can check out this blog: Discontinuation of QuickBooks Desktop Point of Sale FAQs.

I'm always available if you have additional questions about installing POS. Don't hesitate to tag me or reply to this post if you have one.