SAP Message REEXPM004 - Ending reading missing for &1 meter &2 period &3

Diagnosis
There is no ending meter reading entered for the above meter forsettlement period &V3&.

System Response
Settlement is not carried out.

Procedure
Enter the ending meter reading for the settlement period.
The ending meter reading for a meter is the highest meter reading withinthe settlement period.
The reference date of the meter reading is the determining date for thesettlement period.