Diagnosis
Internal error:
You have specified a device/register for which the gas law deviationfactor is to be determined for each pressure and temperature. Thetemperature could not be determined for the period you have specified.

System Response
An error has occurred.

Procedure
Check whether a temperature area or a fixed temperature key is assignedto your device/register.
If not, complete the missing data and repeat this transaction.
If this data already exists, an internal error has occurred. In thiscase, contact SAP.