How To Fix FAGL_LEDGER_CUST166 - Ledger group &1 is not assigned uniquely to an accounting principle

SAP Error Message - Details

• Message type: E = Error

• Message class: FAGL_LEDGER_CUST - New General Ledger: Customizing

• Message number: 166

• Message text: Ledger group &1 is not assigned uniquely to an accounting principle

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FAGL_LEDGER_CUST166 - Ledger group &1 is not assigned uniquely to an accounting principle ?

  The SAP error message FAGL_LEDGER_CUST166 indicates that there is an issue with the assignment of a ledger group to an accounting principle in the system. This error typically arises in the context of the New General Ledger (New GL) functionality in SAP, where ledger groups are used to manage different accounting principles (such as IFRS, GAAP, etc.).
  Cause:
  The error occurs when a ledger group is assigned to multiple accounting principles, or when it is not assigned to any accounting principle at all. This can lead to ambiguity in the system regarding which accounting principle should be used for transactions involving that ledger group.
  Solution:
  To resolve this error, you need to ensure that each ledger group is uniquely assigned to a single accounting principle. Here are the steps to do this:
  
  
  Check Ledger Group Assignments:
  
  Go to the transaction code OB22 (or navigate through the menu: SPRO > Financial Accounting > General Ledger > Master Data > Ledger > Define Ledger).
  Review the assignments of ledger groups to accounting principles.
  
  
  
  Correct Assignments:
  
  If you find that a ledger group is assigned to multiple accounting principles, you will need to modify the assignments to ensure that each ledger group is linked to only one accounting principle.
  If a ledger group is not assigned to any accounting principle, you should assign it to the appropriate accounting principle.
  
  
  
  Save Changes:
  
  After making the necessary changes, save your configuration.
  
  
  
  Test the Configuration:
  
  After making the changes, perform a test transaction to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  OB22: To define and manage ledger groups and their assignments.
  FAGL_LEDGER: To view and manage ledger-related settings.
  
  
  
  Documentation:
  
  Refer to SAP Help documentation for detailed information on New GL and ledger configurations.
  
  
  
  Support:
  
  If you continue to experience issues, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error message.
  
  
  
  By ensuring that each ledger group is uniquely assigned to an accounting principle, you should be able to resolve the FAGL_LEDGER_CUST166 error and maintain proper accounting practices in your SAP system.