Is there a way to send multiple past due invoices to the same client AND include a payment link on QB Desktop?

Welcome to the Community. Let me share some information about sending past due invoices and payment links in QuickBooks Desktop, LamarP.

The option to send multiple past-due invoices to the same client and include a payment link on QuickBooks is unavailable. We can only send multiple invoices for the same client, however, the payment link should be individual. I'd recommend sending this request straight to our product engineers through feedback. Sharing features and options that you would like implemented is how our engineers look for new product updates. Log your product suggestions inside your company file. Just go to the Help Menu and select Send Feedback Online.

Here's how to send multiple past due invoices at once to a single recipient: 

1. Go to the File menu, then select Send Forms.
2. Click the checkbox for each invoice or form that you want to send. You can choose the Combine forms to a single recipient in one email option if you want to send multiple forms to one customer.
3. Press Send Now.

Here's an article you can refer to for more details about emailing sales forms, invoices, and statements in QuickBooks Desktop. To verify if the invoices were sent, check out this article: Verify that an invoice was emailed and read by the recipient.

On the other hand, let me show you how to create and send the payment link:

1. Go to the Customers menu.
2. Choose Payment Links.
3. Enter the amount and description
4. Select an existing customer or add a new customer.
5. Enter the customer email
6. Set the appropriate payment method (credit card or ACH).
7. Click Send Payment Link.

After that, QuickBooks sends an email to your customer containing the requested payment details and a Pay button. You’ll receive also a confirmation email. You may copy the auto-generated link and share it using your preferred messaging channel. To learn more about how this feature works, visit this article: Payment Links for QuickBooks Desktop. I've also included an article that will help you in managing customer payments for online invoices and in-person sales: Receive and process payments in QBDT.

 Feel free to visit our Sales and customers page for more insights about managing your company's income and customers.

I'll be right here to continue helping if you have any other concerns or questions about QuickBooks. Assistance is just a post away. You have a good one.