SAP Message 70036 - A valid changeover period does not exist for &1 in table T500W

Diagnosis
Table T500W Valid Country Currencies is not properly maintained.
This table specifies validity periods for both the old nationalcurrency and the euro for the country that is changing over to theeuro. The dual-currency phase arises out of these two entries.
At the moment, there is no common validity period for the twocurrencies. It is possible that the end validity date of the oldcurrency is earlier than the start date of the new currency.

System Response
The system terminates the process. You can use the selection screen tomake new entries.

Procedure
Specify the validity period for both the old national currency and theeuro for country key &V1& in table T500W Valid CountryCurrencies.
You will find more information about pay scale currency conversion inthe documentation of report RPUEMU00.