No implementation for BAdI HRPAYDECI_SKV_ZVKA available

What causes this issue?

While checking BADI HRPAYDECI_SKV_ZVKA, it was determined that no
implementation exists for this BAdI. The implementation is a requirement
when creating and transferring notifications during the social fund
procedure, as this is the only way of checking the full employee number.

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?

Implement the BAdI. You can find the necessary information in the
Customizing documentation.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.