Hi there, Lairg. This happens when the connection between Standard Bank and QuickBooks Online (QBO) is interrupted, generally due to bank maintenance or updated security protocols.
To help narrow this down, are you seeing any specific error messages on your Banking tab? In the meantime, log in directly to your Standard Bank website to check if there are any maintenance or updates.
If everything appears fine on the bank's end, you'll need to manually update your bank feed to refresh it. To do this, click the Update button on your Bank transactions page.

If the issue persists, you can manually upload those transactions into your bank feed. Simply log in through a web browser and download your transaction history for the missing dates in a CSV or QBO format. Once downloaded, select the Upload bank statement button and follow the on-screen prompts to complete the process.
I’ll keep an eye on this thread if you have any additional questions or concerns with QuickBooks.