Secondary data function &1 is not active

What causes this issue?

You cannot use the function &V1& that you selected to determine or check
secondary data since the function module assigned in Customizing is not
available or not active in the SAP system.

System Response

INCLUDE EHS_NA_NO_MAINTAIN OBJECT DOKU ID TX

How to fix this error?

INCLUDE EHS_NA_ADMIN OBJECT DOKU ID TX

Procedure for System Administrators

INCLUDE EHS_NA_CHECK_CUSTOMIZING OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.