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

FKC_MIG001 - Overview

• 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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FKC_MIG001 - Details

• 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