SAP Message BK203 - Reposting not possible, as all possible periods are locked

Diagnosis
You want to repost a document. Reposting is only allowed within afiscal year. The posting period &V1& of the document and the subsequentperiods of the corresponding fiscal year &V2& are locked by the system.

System Response
It is not possible to repost the document.

Procedure
Ensure that the lock for period &V1& or for a later period of fiscalyear &V2& is removed.