Hi, can u pls tell me how can I customize my payment voucher in qb online?

Hi there, cicriswan.

At this time, customizing a payment voucher isn't an option. We recognize that each company has unique needs, and I can see how the feature you're looking for would benefit and empower your business. I recommend sending this request straight to our product engineers through feedback. It helps us improve the features of the program.

To send feedback, follow the below steps:

1. Go to the Gear icon at the top.
2. Select Feedback.
3. Enter your comments or product suggestions. 
4. Then select Next to submit feedback.

In case you need tips and related articles in the future about the "How Do I" steps in QuickBooks Online (QBO), visit our QuickBooks Community help website for reference: QBO Self Help.

If you have any other questions about QBO, you can always add them to your reply. I'll be more than happy to take care of them for you. Have a dazzling day ahead!