Formal error during call of FKK_ENQ_INTERVAL_SET_GEN

What causes this issue?

During the call of function module FKKENQ_INTERVAL_SET_GEN, the error
listed under '&V1&' occurred.
1 - No lock process was entered.
2 - The upper limit for the interval is before the lower limit for the
interval.
3 - No contract accounts were entered.

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?

INCLUDE NA_SYSADMIN1 OBJECT DOKU ID TX

Procedure for System Administrators

INCLUDE FICA_NA_OSS OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.