Hi Bronwyn,

Thanks for using Community Hub. 

There are two ways you can go about correcting this, depending on which you prefer or feel more comfortable with.

The first would be to go onto the Employee's record file, and go onto the ETP tab. 
In there you can add a new line for the missing pay period, and enter in the values for the employees pay for that period. You would need to enter the gross pay they received, plus any PAYE, USC, PRSI etc. they would have paid in that period for any of the relevant boxes.
You'd also need to go along and enter in any other year to date (YTD) information (for example, Tax Paid TY or Taxable TY) so that they are correct for what they would have been up to and including that period (so the total Tax Paid up to and including 21/09).

If the employee was paid in later periods after 21/09, you might then need to also check any cumulative figures are also correct for the later periods - particularly tax and USC (if they're on a normal tax status, then these calculations may have been incorrect now for the later periods). You'd also need to check any TY fields are correct for any of the later periods (since they are probably lower than they should be by 1 periods worth of pay).

Once that's been done you can resend you payroll submissions to make sure Revenue have the correct figures.
This guide goes over all the fields to consider in a bit more detail if you need it: Correcting errors: If there are missing pay periods in an employee's record.

The other alternative would be to either restore a backup or use the period archive feature to go back to that period and then enter the timesheets for that employee. You would then however need to reprocess your whole payroll again up to the end of the year to be able to correct this employees information, but it would mean that the program would work out any year to dates for you and changes needed to the record. 
This guide covers how to revert to an earlier period in order to reprocess: Revert back to an archived period.

Both options can be a bit complicated, so if you need a bit more guidance, a call into our technical support team might be best to discuss it in a bit more detail. They won't be able to help with the calculations or manual changes, but they should be able to give you a bit more steer on what exactly is needed if you want. You can find out how to contact them here: Contact Us. 

If this helped, please click Verify Answer.

Regards,

Becky

Sage UKI