Hello there, @integriby. I can lead you in the correct direction for a complete solution.
It seems like you've posted twice here in Community. You can manually add your bank transactions to appear in your bank register.
For detailed response, you can visit this post to check the solution provided by my colleague: https://quickbooks.intuit.com/learn-support/en-us/banking/re-missing-banking-transactions/01/991185/....
You can also want to check out this article to learn how to set up bank rules in QuickBooks Online. It will automatically categorize your bank transactions.
Let me know if there's anything you need about missing bank transactions. I'm always here to assist. Have a great day!