Can’t updated payments,still showing past due but some paid

Let me help you update invoices to display them as paid, gonzaut. 

Usually, a past due or overdue invoice occurs when there's no payment link to it. We need to review the invoice through the customer's transaction list. With this, we can determine if there's a payment linked to that invoice or not. 

If there is no payment linked to the invoice, we can mark it as paid by clicking on Receive Payment under Action.

Here's how:

1. Go to Sales in the left panel, then click Customers.
2. Click the customer and select Receive payment.
3. Hit Save.

Alternatively, if there is a downloaded entry, we can match it with the invoice.

Furthermore, you can visit these articles on how to personalize and add specific info to your sales forms: Customize invoices, estimates, and sales receipts in QuickBooks Online.

You can count on me if you have more questions about managing your invoices in QuickBooks Online. It’s always my pleasure to help you. Stay Safe.