Using untied as bridging software for MTD
untied is able to act as bridging software - this brings data from your existing digital records and allows it to be sent to HMRC. The records can't be subject to rekeying etc.
To do this, you'll need to have your records in a spreadsheet that is saved as a CSV in a way that untied can import.
See how to import transactions into untied. You will need to make sure they are tagged once in untied.