How To Fix FKKBIX2002 - No comparison field is entered in schema &1 for duplicate check

SAP Error Message - Details

• Message type: E = Error

• Message class: FKKBIX2 - Billing in Contract Accounts Receivable and Payable

• Message number: 002

• Message text: No comparison field is entered in schema &1 for duplicate check

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FKKBIX2002 - No comparison field is entered in schema &1 for duplicate check ?

  The SAP error message FKKBIX2002 indicates that there is an issue with the configuration of the duplicate check in the schema specified. This error typically arises when the system is trying to perform a duplicate check during the processing of financial documents, but it cannot find the necessary comparison fields defined in the schema.
  Cause:
  The primary cause of this error is that the schema specified in the error message does not have any comparison fields defined for the duplicate check. This can happen due to:
  
  Incorrect Schema Configuration: The schema may not have been set up correctly to include the necessary fields for the duplicate check.
  Missing Fields: The required fields that should be used for comparison may not have been defined in the schema.
  Custom Modifications: If there have been custom modifications to the schema, it may have inadvertently removed or altered the comparison fields.
  
  Solution:
  To resolve the FKKBIX2002 error, you can follow these steps:
  
  
  Check Schema Configuration:
  
  Go to the transaction code OBD2 (for Financial Accounting) or OBD3 (for other modules) to view the schema configuration.
  Identify the schema mentioned in the error message.
  
  
  
  Define Comparison Fields:
  
  Ensure that the necessary comparison fields are defined in the schema. This typically includes fields like document number, company code, fiscal year, etc.
  You can add the required fields by editing the schema and including the appropriate comparison fields.
  
  
  
  Review Documentation:
  
  Check SAP documentation or help resources for the specific schema you are working with to understand which fields are required for the duplicate check.
  
  
  
  Test the Configuration:
  
  After making changes to the schema, perform a test to ensure that the duplicate check is functioning correctly without triggering the error.
  
  
  
  Consult with SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support or consulting with an SAP expert who can provide guidance based on your specific configuration.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OBD2, OBD3, and FBV0 for document processing.
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address the issue.
  Documentation: Review the SAP Financial Accounting (FI) configuration guides for detailed information on setting up schemas and duplicate checks.
  
  By following these steps, you should be able to resolve the FKKBIX2002 error and ensure that your duplicate check functionality is working as intended.