SAP Message 70020 - Table T510F already contains currency &4 for pay scale &1 &2 &3

Diagnosis
Table T510F Assign Pay Scale -> Time Unit, Currency is notproperly maintained.
An entry with currency &4, the conversion currency, already exists inthis table for the pay scale (pay scale type &1, pay scale area &2, payscale indicator &3).

System Response
The program is terminated.

Procedure
Check table T510F Assign Pay Scale -> Time Unit, Currency. Forpay scales that have not yet been converted, you may either have noentry for country grouping, pay scale type &1, pay scale area &2, andpay scale indicator &3, or you may have only one entry with the oldcountry currency in table T500W Valid Country Currencies.
Correct the entry if necessary. Execute the report again.
You will find further information about pay scale currency conversionin the documentation of report RPUEMU00.