How To Fix GP182 - The definition of open periods is not allowed

GP182 - Overview

• Message type: E = Error

• Message class: GP - FI-SL and CO planning

• Message number: 182

• Message text: The definition of open periods is not allowed

What causes this issue?

You are trying to plan an interval of periods which contains closed
planning periods.

System Response

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

How to fix this error?

Change your planning parameters or your open periods so that you can
can carry out planning to an interval of periods that does not contain
closed periods.

Error message extract from SAP system. Copyright SAP SE.

GP182 - Details

• The SAP error message GP182, which states "The definition of open periods is not allowed," typically occurs in the context of the SAP General Ledger (G/L) or Financial Accounting (FI) modules. This error is related to the configuration of the fiscal year and the open periods for posting transactions.
  
  Cause:
  
  
  Incorrect Configuration: The error often arises when there is an attempt to define open periods in a way that is not allowed by the system configuration. This could be due to:
  
  Trying to open a period that is already closed.
  Attempting to set open periods for a fiscal year that has not been properly defined.
  Conflicts in the settings for different company codes or fiscal years.
  
  
  
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to change the open periods.
  
  
  System Settings: The system may have restrictions based on the configuration settings in the controlling area or company code.
  
  
  
  Solution:
  
  
  Check Configuration:
  
  Go to the transaction code OB52