Hello Sir /madam, I just wanted know i want removed my bank from QB and their mapping also removed ? once we removed my Bank Account

I'm here to assist you with your banking concern, amit.s.

Banking helps to download your bank transactions automatically into QuickBooks Online for faster categorization. It's one of the time-saving features in QuickBooks Online.

Once you remove the connection between the bank and QuickBooks Online, the account and all the categorized transactions will remain in QuickBooks. This is to ensure that your register and reports are accurate and intact.

You can check this link for more details: Bank and credit card accounts to QuickBooks Online.

Keep your posts coming if you need more help. Take care!