How to edit payment voucher template?

Welcome to the QuickBooks Community, finance-alkhairi. Please know editing payment voucher templates for the vendor or customer is currently unavailable in QuickBooks Online. With this, I'll ensure you can find alternative steps to achieve your goal and send feedback so your suggestion is forwarded to the Product Development Team.

For now, I suggest going to the Apps tab inside QBO. From there, you're able to see hundreds of apps that you can integrate and allow you to edit payment voucher templates.

Additionally, I also recommend giving feedback so that you can request to have the option to update the payment voucher template in QuickBooks.

Here's how:

1. Select the Gear icon at the top, then Feedback.
2. Enter your comments or product suggestions. 
3. Choose Next to submit feedback.

After that, your recommendation is sent to our engineers for consideration in future updates.

Lastly, you may refer to this article if you need assistance in personalising your sales forms to have professional-looking transactions: Customise invoices, estimates, and sales receipts in QuickBooks Online.

Feel free to click the comment section below if you have other concerns about managing payment vouchers in QBO. I'll be sure to get back to you. Have a good one, finance-alkhairi.