Hi there, paul54,
I'm here to help share information about setting up your QuickBooks Online account to interact with HMRC - MTD.
To confirm if you've successfully completed the process in authorising your QuickBooks Online account to interact with HMRC - MTD, the green tick will be enabled in the top left on your vat centre page.
To know more about the step by step process about this, you can read this articles:
If you have any other product related concerns in the future, you can always visit our Community page for helpful topics.
This will point you in the right direction, paul54. Keep me posted if you have any other questions concerning your QuickBooks Online account. You can always count on me. Have a great day!