On the app only one attachment can be added... should be added more.....

[IntuitLily · Accepted solution]

Thank you for visiting the Community, @sukhi-jassal.

In QuickBooks Online, you can add more than one attachment on the Attachments list. However, you can only add one attachment per transaction. 

You can upload a file directly to the Attachments list without attaching them to a transaction or profile. For mobile apps, you can add the attachments to the Notes & Attachments option.

Here's how:

1. Go to Notes & Attachments.
2. Then click the Plus Icon.
3. Click the Pin Icon.
4. Select the Assign To field and click the source.

For QBO Desktop App and browser, you can refer to this article for more details: Attachments in QuickBooks Online.

Please leave a comment if you have any questions. I'm always here and ready to help. Have a fantastic day!