The system could not determine an employee list

What causes this issue?

The selection assigned to you for determining employees did not produce
any results.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Contact your system administrator.

Procedure for System Administrators

Check the entry in table HRSEL_GROUPING for the declarant. You find
this under the following Implementation Guide menu path:
SAP Reference IMG -> Personnel Management -> Human Resources
Information System -> Selection IDs -> Specify Groupings

Error message extract from SAP system. Copyright SAP SE.