Why isn't there a field to enter a class code when entering interest earned and service charges when performing a bank reconcilliation?

The reconciliation window in QuickBooks Online (QBO) is specifically designed to simplify the process of matching transactions between your accounting records and bank statements, Cowa.

When reconciling transactions in QBO, its primary focus is to verify that the totals for each transaction, including payments, interests earned, and service charges, are aligned with your bank statements, not on assigning additional details like assigning class codes to transactions. This is to ensure that the reconciliation process, which is mainly focused on matching balances, is separated from transaction organization, which happens either before or after reconciliation.

Additionally, when interests earned and service charges are imported through bank feeds, these transactions are assigned to default categories or accounts by QBO. However, class codes aren't automatically applied. This is because class tracking functions separately from the reconciliation process and should be assigned manually for more detailed reporting

To address this, you can consider setting up some bank rules in QBO. While these won't assign class codes directly, they can still help you to automatically categorize and streamline other aspects of transaction entry, making things more efficient for you to review and assign class codes for later use.

Feel free to reply to this post if you need further assistance.

This answer does not address my question / issue at all.  We do not import our bank transactions.  When doing our reconciliations, we enter any bank transactions which are not on our books. Those are mainly interest earned and services charges. Those transactions must have class codes, so they appear in the proper place on an income statement by class. Since QuickBooks does not provide a place to enter the class code, I must edit the transaction so I can enter the class code. This is obviously poor design.

This is a terrible answer and nonsensical. This was functionality that existed in Quickbooks Desktop, and is yet another way the online experience continues to get worse and worse instead of better. 

It looks like for class tracking, these two items need to be entered manually or via the bank feed. Try entering them in before beginning the bank reconcile. 

It looks like you'd need to enter these in manually or via the bank feed before you begin the reconciliation.