The date and time of the planned downtime has been changed to Thursday 21 March 9am to 5pm.
Planned downtime for Sunday 17 March 2019 has changed to Wednesday 20 March 2019 from 9am to 6pm.
Planned downtime for Sunday 10 March 2019 has changed to Sunday 17 March 2019 from 11:30am to 8pm. Information about this issue has been added.
Planned downtime for Sunday 10 March has changed to Friday 8 March from 10:30am to 6pm on Sunday 10 March.
Planned downtime for Friday 1 March to Sunday 3 March has changed to 6pm on Friday 8 March 2019 to 6pm on Sunday 10 March 2019. A service issue about the automated transfer process changing has also been added.
Planned downtime from 5:30pm on Wednesday 20 February 2019 to 9am on Thursday 21 February has been added.
Planned downtime from 1 March 2019 to 3 March 2019 has been added and a service issue for the managing users option, which will be unavailable from 13 February 2019 due to a technical problem.
Service issue for Thursday 8 November 2018 from 6pm to 11pm has been added.
Service issues message removed.
The service availability section has been updated as the service is currently unavailable.
The service issues section has been updated as HMRC is currently experiencing issues with the delivery of emails from SDES.
Planned maintenance to the Secure Data Exchange Service on Thursday 21 June 2018 from 6pm to 7pm has been added to the page.
Planned maintenance to the SDES service on Friday 9 March between 9am and 11am added to the page.