Hello there, yihsuan.

I understand the importance of personalising the delivery note in QuickBooks Online (QBO).

Currently, adding a remark column in the delivery note is unavailable. We'd love to hear your thoughts about customising delivery notes by sending us feedback within your QuickBooks Online company. It enables our product developers to consider adding in future updates.

 Here's how:

1. Go to the Gear menu and then select Feedback.
2. Type in your feature request in the description box.
3. Once done, click on Next.

You may also want to look at a third-party application that can help add a remark column in the delivery note. You can find one by visiting this website: Apps for QuickBooks Online.

I've added articles to help personalise sales forms in QuickBooks: Customise invoices, estimates, and sales receipts.

Here's the link to check your sales and contributions breakdown: Customer sales and member contributions report.

Let me know if you have other questions about customising delivery notes in QuickBooks. I'm here to help.