When jumping among the service confirmation items and changing their original executive service employee to another, it is found that for some items the original executive service employee is auto-changed to the new one.
SAP S/4HANA Cloud
Hierarchy relationship is used in the service order which the service confirmation is created out of. The hierarchy relationship in the service order will also be brought to the service confirmation. When the executive service employee of the higher-level item of a certain service confirmation item has been changed, the executive service employee of this item will be auto-determined as the new one.
As explained in the "Cause" part, this is a standard behavior when the hierarchy relationship is used.
Service confirmation item, Executive service employee, Hierarchy relationship, Service order, Higher-level item , KBA , CRM-S4-SRV-SVO , S4CRM: Service Order , Problem