Welcome to QuickBooks Online, mellorjr.
When you mentioned about divisions, categories, and sub-categories, you might be referring to the Location and Class tracking features in QuickBooks Online. These feature are available in QuickBooks Online Plus and Advanced subscription. To know more about these features, you can browse these references:
These locations and classes can be assigned to transactions that you create in QuickBooks Online.
If you want to import the divisions, categories, and sub-categories from a third-party application, I'd recommend reaching out the third-party app's support team. They might have an option to import it to QBO. Otherwise, you'll have to create them manually in QBO. Then, assign it to the transactions.
Meanwhile, QuickBooks Online also have a budgeting feature which is also available in the Plus and Advanced subscriptions. You can use this link for reference to know more about budgeting: Create and import budgets into QuickBooks Online.
Then, you can manage your bank transactions properly once you've set up everything.
You can always get back to us if you have additional queries on how the program works. Have a great day!