why are transactions missing for one month

QuickBooks Self-Employed (QBSE) relies on the banking information supplied by your bank, @info2167. Therefore, any inconsistencies or missing transactions could result from the data exchanged between your bank platforms.

Connection delays also disrupt the transfer of data from your bank to QuickBooks. Also, monitoring the connection and staying updated can help ensure your QuickBooks account maintains accurate financial records.

In the meantime, I suggest manually importing them into QBSE. Please follow the steps below:

1. Click the Gear icon, then select Imports under TRANSACTIONS.
2. Select the Import older transactions link.
3. Follow the onscreen instructions to upload the CSV file, then click Import.

You can read this article for more details about manually importing transactions in QBSE: Manually import transactions into QuickBooks Self-Employed.

Finally, review and categorise your downloaded entries to put them in the correct accounts.

Happy to help you out again if you have other concerns with your QuickBooks Online tasks. Just add your questions in this thread.