An assessment cycle is used in SAP to assign all primary cost elements and secondary cost elements from a sending cost center to the receiver cost center. When you want to transfer costs from one cost center to another through an assessment cycle, sap use a secondary cost element and accumulates all the primary cost and secondary cost and send it to the receiving cost center.
PF1
WP1
In PF1, assessment cycles are used to:
The codification of the secondary cost element to be used is: 91xxxxxxxxxx
In WP1 , assessment cycles are used to:
The codification of the secondary cost element to be used is: 99xxxxxxxx


PF1
WP1