How To Fix UCS0021 - Period cannot be closed

UCS0021 - Overview

• Message type: E = Error

• Message class: UCS0 - Messages for Status Management

• Message number: 021

• Message text: Period cannot be closed

What causes this issue?

The period cannot be closed due to the current task status. A period
can only be closed if all tasks to be executed have been blocked or if
none of the tasks of the consolidation monitor have been run (initial
stage of the monitor).

System Response

Informational

How to fix this error?

Block all of the unblocked tasks. You may have to rerun them without
errors before blocking them.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UCS0021 - Period cannot be closed ?

  The SAP error message UCS0021, which states "Period cannot be closed," typically occurs in the context of the Universal Journal (UCS) in SAP S/4HANA or in the context of financial closing processes. This error indicates that there are certain conditions preventing the closure of a financial period.
  Causes of UCS0021
  
  
  Open Transactions: There may be open transactions or postings in the period that need to be addressed before the period can be closed. This includes unposted documents, open invoices, or pending journal entries.
  
  
  Incomplete Processes: Certain financial processes, such as asset accounting or inventory valuation, may not have been completed for the period in question.
  
  
  
  Configuration Issues: There may be configuration settings in the system that prevent the closure of the period. This could include settings related to the fiscal year variant or period control.
  
  
  User Authorizations: The user attempting to close the period may not have the necessary authorizations to perform the closure.
  
  
  Pending Approvals: