Transactions from August 2019 to December 19 are missing, I have tried to reconnect to the bank and also refreshing the transaction page and none of them have shown up. Is there any suggestions?
Yes, I've got the suggestions you need to get the missing transactions from August to December 2019 downloaded to QuickBooks Sel-Employed (QBSE), @jocelyns5054-hot.
It's good to hear you've reconnected the bank and refreshed the transaction page. However, the program only automatically downloads the last 30 - 90 days of transactions. That may be the reason none of them are showing up on the Transactions page.
I'd suggest downloading transactions from your bank using a CSV file since these are from August to December 2019. Then, manually import them to QBSE. I'll guide you how.
To export the transactions from your bank:
Sign in to your bank’s website.
Follow the steps to download your transactions using a CSV file.
Set the date range (August to December 2019).
Follow any on-screen instructions to finish the download.
Select the file and select Open to start the import.
Review the column headers and data. Ensure the Date, Description, and Amount columns on the file match the columns and order in QBSE.
Click Continue to complete the import.
Once done, let's go back to the Transactions tab and filter the dates to All. That way, we can check for any duplicate entries. If there any, you can exclude or delete them. For the detailed instructions, see this article's Steps 2 - 4 through this article: Add Older Transactions To QBSE.