Use this activity to reverse the both created vouchers in create voucher step. This will reverses both vouchers created and change the state for the revaluation id to "Cancelled". When the rollback vouchers have been created, you will be allowed to delete the whole revaluation for the period if yu like. Otherwise you can keep the record for information purpose.
Revaluation voucher and reversal voucher are cancelled by creating another two vouchers. Revaluation is in status "Cancelled".