3384349 - Error Message "Partner <Worker> (Employee Responsible) is neither an employee nor an organizational unit" Displayed during save in Service Contracts

When saving Serving Contracts in Manage Service Contracts Fiori app, the following error message raised:

 "Partner <Workforce Person> (Employee Responsible) is neither an employee nor an organizational unit"

SAP S/4HANA Cloud

The Workforce Person was created incorrectly, or the Business Partner's role was added without HR data source.

Use one of the data sources from the KBA below:

 2646803 - How to Maintain Workforce Person Data in SAP S/4HANA Cloud

Service Contracts, Workforce Person, Worker, Manage Service Contracts, is neither an employee nor an organizational unit , KBA , CA-WFD-INT , S/4HANA Cloud Workforce Domain Integration , Problem