You can use this function to change all the partner functions, with the exception of the sold-to party and the location, which you can change by using change processes Change of Sold-to Party and Change of Location.

When you execute a change of other partners, the system creates a new service item. You can make this change at any time in the contract duration up to the end of the contract.

Enter a change reading.

The change process takes place at item level.

This change process is defined in Customizing under the technical name CHBP.