How To Fix FKC_MIG001 - Several document headers were transferred for instance &1.

SAP Error Message - Details

• Message type: E = Error

• Message class: FKC_MIG - FI-CAC: Migration Messages

• Message number: 001

• Message text: Several document headers were transferred for instance &1.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FKC_MIG001 - Several document headers were transferred for instance &1. ?

  The SAP error message FKC_MIG001 indicates that there are multiple document headers being transferred for a specific instance (identified by &1). This typically occurs during the migration of financial documents, particularly when using the Financial Accounting (FI) module or during data migration processes.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Duplicate Document Headers: There are multiple document headers in the source data for the same instance, which violates the uniqueness expected by the system.
  Incorrect Mapping: During the migration process, the mapping of source data to target data may not have been set up correctly, leading to multiple headers being created for the same document.
  Data Quality Issues: The source data may contain inconsistencies or errors, such as duplicate entries or incorrect relationships between document headers and line items.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Source Data: Review the source data for duplicates. Ensure that each document instance has a unique header. You can use tools like Excel or SQL queries to identify duplicates.
  
  
  Data Cleansing: If duplicates are found, clean the data by removing or consolidating duplicate entries. Ensure that each document header corresponds to a unique instance.
  
  
  Review Migration Mapping: Check the mapping configuration used during the migration process. Ensure that the mapping correctly reflects the relationships between document headers and line items.
  
  
  Use Migration Tools: If you are using SAP's migration tools (like the Migration Cockpit), ensure that you are following the correct procedures and guidelines for data migration. Refer to the documentation for any specific requirements regarding document headers.
  
  
  Test Migration: Before performing a full migration, conduct a test migration with a smaller dataset to identify any potential issues early on.
  
  
  Consult SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or solutions related to this error message.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FB01 (Post Document), FBL1N (Vendor Line Item Display), and FBL3N (G/L Account Line Item Display) to analyze document postings.
  SAP Community: Engage with the SAP Community forums for discussions and solutions shared by other users who may have encountered similar issues.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the steps you have taken to resolve it.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to successfully migrate your financial documents without encountering the FKC_MIG001 error.