Welcome back to the Community, MTS2022.
I understand that you need to have the spelled out Manufacturer's Product Number (MPN) to show on your report. However, the option is unavailable.
While this isn't available yet, I suggest sending feedback to our engineers. We consider our customer suggestions when looking for product improvements and ways to enhance QuickBooks.
You can check all new features added and see all our latest news by visiting our QuickBooks blog.
If you need help in customizing reports, please check this link: Customize reports in QuickBooks Desktop.
Keep on posting if you have any other questions. The Community is always here to help.
I appreciate you for joining the thread, @nancy2005.
For me to help you. Would you mind sharing a screenshot of what report did you pull up that shows MPN no value? This way, I can see what's on your end and what type of error it must be.
If you have additional queries about managing your reports, feel free to reply to this post. I'll be willing to help you. Take care and have a good day!