I appreciate you for posting here, Tamm_Kent.

I can see how inconvenient it is to encounter issues while working on your file.

I'm here to isolate what causes the issues when applying vendor credit and printing checks.

Let's start with printing checks. Can you share more details about it? Is it printing incorrectly? I want to ensure that I'll be providing the correct solution.

In the meantime, you can check this article that has some troubleshooting to fix printing issues: Troubleshoot printing in QuickBooks Desktop for Mac.

As for linking the credits, let's run the Transaction List by Customer report and customize it to show which bills the credits are being applied to. Let me guide you how:

1. Click the Reports tab.
2. Under Customers & Receivables and choose Transaction List by Customer.
3. Click the Customize Report button.
4. Go to the Filters tab.
5. In the filter box, select Transaction Type.
6. On the Transaction Type field, choose Credit Memo.
7. Click OK.

I've also added this reference as your guide when printing checks and applying for credits:

• Print Checks
• Apply for credits

Keep me posted when my help is needed. I'll be around to guide you.