MTD Fetch/API Issues

We are currently investigating an issue with the HMRC Fetch/API around MTD Quarterly Filer. Please try again later, and this message will be updated when we know further information. We are updating details within MTD Quarterly Filer - Known Errors and the latest update is below:

05/08 - 13:00. Following the code change we are now seeing responses being returned as expected and without delay. You may now receive specific messages from HMRC, and please check the known errors page above for additional details for these.