We have been submitting MTD VAT returns on behalf of clients and we also have clients who submit their own from the software.  There have  been no issues so far.  Since Monday every MTD client when we go to Taxes it comes up with this message box about needing to authorise Quickbpooks, which you either click on Authorise QB or Dismiss.  If you dismiss, by the open returns, the status is reported as "Take Action".  If we click on authorise, it seems to want to reauthorise all clients on our ASA accounts (we are still within 18 month period before we need to do this).  Has anyone come across this and how do we resolve it?  We have phoned QB and they have not come across this message.