Should you wish to send a test transmission to the HMRC of your FPS or EPS, this is called a ‘Test In Live’ submission. This means that the file can be sent to the HMRC with the assurance that it will not update payee’s tax accounts.
When the submission is completed, you will be notified that no submission has been made but the test has been successful
Should a ‘Test In Live’ submission be required, this needs to be requested via our helpdesk as the following setting in the NextGen web.config should be set to true:
<add key="HmrcMessengerTestInLive" value="false"/> under NextGen web.config
Ensure that this flag is returned to ‘false’ when the test is completed.