SAP Message PX042 - Time unit &1 is invalid

Diagnosis
Only values allowed for the domain are permitted values for time units.The entry in the table is not valid for this domain. An error wasalready present in the table before the conversion.
The incorrect value for the time unit is &V1& in client &V2&.

System Response
The entry is made with "00" as the period parameter.

Procedure
Check the table after the conversion.