once a pay run has been submitted to HMRC it is currently not possible to submit and amendment to HMRC

with in sage you can roll back one employee, make and amendment and the submit and FPS adjustment - this tell's HMRC the difference between the original FPS and the amounts after the adjustment,

I called Quickbooks online when I needed to make and amendment, and was told I needed to contact HMRC to notify them of the amendment, HMRC won't allow this, the information has to come from within the payroll software,

Quickbooks then said the only way around this would be to delete the "WHOLE' pay run, redo it the when it is submitted to HMRC it overwrites the original

this is not the best ideal if you have a lot of employees per pay run