How can I match my purchase orders to invoices to be sure that all purchases are attached and all parts of the job are accounted for?

The option to match purchase orders to invoices is unavailable, Kimmy. I can help you explore alternative solutions that will meet your needs.

In QuickBooks Online (QBO), you can use the Billable Expense feature to mark those bills as billable. It allows you to associate the costs directly with the specific job. I'll guide you on how:

1. Go to the Expenses menu.
2. Open the created bill.
3. Put a checkmark in the BILLABLE column.
4. Hit Save.

When creating an invoice, you can add billable expenses from the Suggested Transactions list in QuickBooks, ensuring you won’t miss any costs.

You can also view all recorded transactions, including purchase orders, bills, and invoices, on the Project page in QuickBooks Online (QBO). It ensures you can easily confirm that all transactions are accounted for and linked correctly.

Here's how:

1. Go to the Projects menu.
2. Filter the Status, Customer, End date, and See info based on.

To keep track of your purchase orders, you can also run reports for them. 

Additionally, visit this article to learn how to personalize your financial reports and get the most out of them: Customize reports.

Should you have other concerns besides linking the purchase order to the invoice, please add them to the reply below. The Community is always glad to help.