next number setup for PV

Hi,

While doing NN setup getting below error. it's coming only for voucher(PV). Checked in F0411 and entering the NN greater than available in table BUT then also getting same error.

What need to be done?

Invalid Next Number Record Add

An error has occurred in the grid on a hidden column (that is, a column that you cannot view). Please contact your system administrator. CAUSE: The Next Number record you are trying to add is invalid. For any company and document type, you may set-up next number records by company OR by company and fiscal year. If you are trying to add a next number by company, there is already a record in the system by company and fiscal year. If you are trying to add a next number by company and fiscal year, there is already a record in the system by company without a fiscal year.