PREC-Approved Trips status from 'To be settled' to 'settled' not working

Hi,

We use Travel Management, and the payment happens through AP.

Trips are approved through WF approval.

Once Approved Status gets changed from -- Trip Completed .to be settled ====Trip Approved.to be settled.

Once after this there is a Mass Settlement that is run through Program RPRTEC00 -Transaction PREC.

So that status changed from -

Trip Approved to be settled =====Trip Approved Settled.

Trip settlement status was not changing to 'Settled'.