Software developers - External Test Service planned maintenance
11 April 2018
Payroll software developers - be aware that the External Test Service (ETS) is scheduled for essential maintenance on 18 April 2018 between the hours of 10.00 and 13:00.
You may experience issues during the hours of maintenance. HMRC apologises for any inconvenience this may cause.
Thank you to HMRC’s Software Developers Support Team (SDST) for providing this information.