SAP Message UCS0020 - Action no longer possible in period &1/&2 for CG/CU &3 in version &4

Diagnosis Either the period or the processing of consolidation units is alreadyclosed for period &V1&/&V2& and consolidation group/unit &V3& in versioncombination &V4&. Actions that change the task status are no longer possible. Procedure If necessary, open period &V1&/&V2& for &V3& and version combinationV4 in the consolidation monitor. then repeat the action.