What causes this issue?

The system checks whether entries for the automatic generation of
absence quotas (infotype <LS>absence quotas</> 2006) exist in
Customizing for <LS>Time Management</> under <LS>Automatic Accrual of
Absence Quotas</>. The rules are defined for each <DS:DE.ABWKO>Absence
Quota Type</>. In this way, the data records of infotype 0004 are also
linked to the data records of infotype 2006.
In the time period selected for data destruction, these types of
dependent data records of the infotype 2006 still exist for infotype
0004.

System Response

The data is not destroyed.

How to fix this error?

Check whether something can be deducted from the existing absence
quotas. Execute archiving object HRTIM_QUOT to destroy data records
belonging to infotype 2006. Then, execute another data destruction run
for HRPA_CHLLN to delete the challenge data.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.