How does Auto Enrolment pension deductions show in Sage Accounts? And why is payslip showing 2 deductions for the member of staff?

I reached my staging date (1st April) and have 2 issues:

1)  The staff payslip shows 2 deductions as below.  This doesn't look right to me, surely I as the employer have to pay the Er figure listed on paylsip.  There is no subsequent credit on it so staff member has paid both amounts.  Have I done something wrong?

Ee Pension (inc AVC) £x.xx

Er Pension (inc Sal. Sacrifice) £x.xx

2)  First dd has come out to pay NEST.  What nominal code do I use to allow for this in Sage Accounts 50?

Thanks