How To Fix >U420 - Reconciliation not possible for controlling area &1

SAP Error Message - Details

• Message type: E = Error

• Message class: >U -

• Message number: 420

• Message text: Reconciliation not possible for controlling area &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message >U420 - Reconciliation not possible for controlling area &1 ?

  The SAP error message "U420 Reconciliation not possible for controlling area &1" typically occurs in the context of financial accounting and controlling (CO) when there is an issue with the reconciliation process between different modules, such as Financial Accounting (FI) and Controlling (CO). This error indicates that the system is unable to reconcile the data for the specified controlling area.
  Causes:
  
  Inconsistent Data: There may be inconsistencies between the data in the FI and CO modules. This can happen if there are missing or incorrect entries in either module.
  Missing Configuration: The controlling area may not be properly configured in the system, or there may be missing settings related to the reconciliation process.
  Period Closure: The accounting period may be closed, preventing any further postings or reconciliations.
  Authorization Issues: The user may not have the necessary authorizations to perform the reconciliation.
  Currency Differences: If there are currency differences between the FI and CO postings, this can lead to reconciliation issues.
  
  Solutions:
  
  Check Data Consistency: Review the entries in both the FI and CO modules to ensure that they are consistent. Look for missing or incorrect postings that need to be corrected.
  Review Configuration: Ensure that the controlling area is correctly configured in the system. Check the settings related to reconciliation and make sure they are properly set up.
  Open Accounting Period: If the accounting period is closed, you may need to reopen it to allow for the necessary postings or reconciliations.
  Authorization Check: Verify that the user has the appropriate authorizations to perform the reconciliation. If not, contact your system administrator to grant the necessary permissions.
  Currency Handling: If currency differences are causing the issue, ensure that the currency settings are consistent across both modules. You may need to adjust the currency settings or perform currency translations as necessary.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes such as KSB1 (Cost Centers: Actual Line Items) or FBL3N (G/L Account Line Items) to review the relevant postings.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Refer to SAP documentation for detailed information on the reconciliation process between FI and CO, including configuration steps and best practices.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a consultant who specializes in SAP FI/CO integration.