If a client paid other method then thru open invoice in quickbooks, Can I close or approve the invoice?

Hi francoisgeneralc,

Welcome to Community!  It's important that you're able to apply payments to your invoices, to ensure your books are balanced.  QuickBooks Online provides options, so you can complete your goals with confidence.  I'd be glad to assist!

Once you've received a payment from your customer, you can record it to the invoice, so it's marked as 'paid'.  Here's how;

1. From the left menu, open Sales and then Customers 

2. Select the customer from the list or enter their name in the Search field

3. Locate the invoice and hit Receive payment in the Action column

4. Enter the Payment date, Payment method and the account to Deposit to

Note: You can put the money directly into an account, like your chequing account, or select Undeposited Funds if you need to group the payment with others.

5. In the Outstanding Transactions section, select the checkbox for the invoice you're recording the payment on and enter the Payment amount

6.When you're done, hit Save and close.

Here's a helpful guide for your reference, should you need to enter a partial payment.

Please reach back out whenever you have a question.  We're always happy to help!