SAP Message /EACC/MSG_DOC_CREA020 - Period &1 in fiscal year &3 is closed for accounting system &2 DOCUMENTATION DiagnosisNo postings could take place in period &V1&/&V3& for accounting systemV2. the period is closed.ProcedureCheck whether you can post in period &V1&/&V3&.You can open the period here.