Currently, both QuickBooks Online (QBO) and Sandbox accounts support importing bank data using the .QBO format, accounting476.
QuickBooks also supports .CSV, .QFX, .OFX, and .TXT file format when importing.
To clarify, did you encounter any issues when importing the file? If so, you'll find this guide helpful: Manually upload transactions into QuickBooks Online.
Also, regarding your reference to programming upgrades in QBO, could you share more details about the specific changes or updates made on your end? Any additional information or screenshots would help us better understand the situation and allow us to offer a more tailored response.
For future reference, you can explore this material to learn how to organize your downloaded transactions: Categorize online bank transactions in QuickBooks Online.
Please don't hesitate to reply, and we will get back to you promptly to provide further assistance.
