SAP Message /BEV2/EDMESS1854 - Closing not permitted; posting in period still permitted

Diagnosis
Execution of the final statements of the tax period is not permissible,as the system still permits entries in the period to be closed.
This can result in subsequent changes of the data/inventory of theperiod.

Procedure
Close the previous period in the SAP-inventory management, resp.prohibit booking entries in the previous period there, when the periodclosing program is set.