Let's figure things out so you can upload your bank transactions and get back to business, Maria.
Beforehand, what financial institution was linked to your QuickBooks Online account? This will help me provide you with specific and relevant information.
Also, I recommend reviewing your bank or credit card's website. Then, check for the following:
Check your account for messages, notifications, or alerts.
Look for any display issues, which can block QuickBooks from downloading new transactions.
Check your bank's website for any announcements about new security requirements.
In the meantime, you can manually upload your bank transactions via a CSV file. Before doing so, download the CSV file of your transactions from your bank's website and ensure they are formatted correctly.
Here are the steps to follow:
Go to Transactions, then select Bank transactions.
Select the blue tile for the account you want to upload the transactions into.
Select the Link account dropdown, then click Upload from the file.
Select Drag and drop or select files and select the file you downloaded from your bank. Then, select Continue.
In the QuickBooks account dropdown, choose the account you want to upload the transactions into. Then, select Continue.
Follow the onscreen steps to match the columns on the file with the correct fields in QuickBooks. Then, select Continue.
Select the transactions you like to import. Then, select Continue.