Hi there.
Thank you for reaching out. To better assist you with changing the import account settings in QuickBooks Online Singapore, I'll need some additional information.
Could you please clarify which specific import account settings you are referring to? Are you looking to change the default account for GST imports, or is it a different import account setting? Additionally, if you could provide a screenshot of the area or menu where you are experiencing the issue, it would be helpful in providing you with the correct resolution.
Please ensure that any sensitive or confidential information is redacted from the screenshot before sharing it with us.
Thank you, and I look forward to assisting you further.