Bank Account and Assignment Details - Bank Account Start Date

In EBS 12.2.4. Responsibility: Payables Manager

Navigation: Suppliers > Entry and  Query for a Supplier.

Click on Banking Details and select a site in Account Assignment Level. Click Go.

I'm able to see the bank accounts details, in this case there are two bank accounts listed
but when I check the IBY table, I see a third one with no start_date information.

Is there a place where I can update the start_date field?
Once this start_date is correct, it will be shown on bank account details?

Thanks in advance.

Diego