Hello there, @JJWRIGHT.

I'll help you figure out why the invoice (bill) you're paying won't show up on your other computer while using the attachment feature when writing checks in QuickBooks Desktop (QBDT), so you can document your expenses accordingly.

Your invoices (bills) and attachments should show on both of your computers once they're on the same network or file location with your company files. Based on your description of the issue, you may have a different file location for your attachments on your other computer. That's why the invoice (bill) you're paying for isn't showing while using the attachment feature.

To fix this, you'll have to make a copy of the attachment and use that copy or upload it to your other computer. You want to make a unique copy for each computer to avoid confusion.

You can refer to this article to learn the answers to frequently asked questions and recommended troubleshooting steps for common issues related to attaching documents in QBDT: QuickBooks Document Center: FAQs and common issues.

Now that everything is all set, you may also want to check out one of our Help pages as your reference to help you in managing your data and transactions (income and expense) using QBDT: QuickBooks Learn and Support. It includes QuickBooks help articles, Community discussions with other users, and video tutorials, to name a few.

Please keep me posted on how it goes in the comments below. If you have other concerns about managing expense transactions and attaching documents in QBDT, I'm always ready to help. Take care, and have a great day, @JJWRIGHT.