I appreciate you bringing this issue to my attention, multiple card sub account .
Could you please provide more details about the problems you have encountered and the specific task you are trying to perform? Additionally, if you could provide a screenshot of the entire error message you received, it would greatly assist us in understanding and addressing your issue more effectively.
Additionally, I've provided a link for you to browse. These resources can be valuable for future reference and to answer any additional questions: View all QuickBooks help articles.
Rest assured, I'll be actively monitoring this thread to assist with your concern.