How To Fix GG105 - You cannot change the ledger class

SAP Error Message - Details

• Message type: E = Error

• Message class: GG - Messages for FI-SL customizing

• Message number: 105

• Message text: You cannot change the ledger class

What causes this issue?

You wanted to change the ledger class to 'C'. However, activities are
assigned to ledger &V1& and these activities are not supported for
rollup ledgers (ledger class C).

System Response

The system cancels the change made to the ledger class.

How to fix this error?

Check your entry.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GG105 - You cannot change the ledger class ?

  The SAP error message GG105, which states "You cannot change the ledger class," typically occurs when there is an attempt to modify the ledger class of a ledger that is already in use or has been defined in a way that does not allow changes. This error is often encountered in the context of Financial Accounting (FI) and Controlling (CO) modules, particularly when dealing with ledgers in the New General Ledger (New GL) functionality.
  Cause:
  
  Ledger Usage: The ledger you are trying to change is already being used in transactions or has been activated in the system.
  Configuration Restrictions: Certain configurations in SAP prevent changes to the ledger class once it has been defined and used.
  Data Consistency: SAP enforces data consistency and integrity, which means that changing the ledger class could lead to inconsistencies in financial reporting and data.
  
  Solution:
  
  Review Ledger Usage: Check if the ledger is currently in use. If it is, you may need to create a new ledger with the desired class instead of changing the existing one.
  Consult Configuration: Review the configuration settings in the Financial Accounting (FI) module to ensure that the ledger class is set up correctly. If changes are necessary, consider consulting with your SAP Basis or FI consultant.
  Create a New Ledger: If changing the ledger class is essential, consider creating a new ledger with the desired class and migrating the necessary data to it.
  Check Authorizations: Ensure that you have the necessary authorizations to make changes to ledger configurations. Sometimes, lack of permissions can lead to such errors.
  SAP Notes and Documentation: Check for any relevant SAP Notes or documentation that may provide additional insights or updates regarding this error.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like OB22 (to maintain ledgers) or OBY6 (to configure ledgers) to review and manage ledger settings.
  SAP Help Portal: The SAP Help Portal provides detailed documentation on configuring ledgers and understanding the implications of changes.
  Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if you suspect a bug or require deeper technical insights.
  
  Always ensure to back up your configurations and data before making significant changes in the system to avoid data loss or inconsistencies.