How To Fix FKC_API002 - Internal ID for &1 not found for legacy ID &2

SAP Error Message - Details

• Message type: E = Error

• Message class: FKC_API - Message class for FI-CAC APIs

• Message number: 002

• Message text: Internal ID for &1 not found for legacy ID &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message FKC_API002 - Internal ID for &1 not found for legacy ID &2 ?

  The SAP error message FKC_API002 indicates that the system is unable to find an internal ID for a specified legacy ID. This typically occurs in the context of financial accounting or when dealing with legacy data migration into the SAP system.
  Cause:
  
  Missing Data: The internal ID that corresponds to the legacy ID does not exist in the system. This could be due to incomplete data migration or incorrect mapping of legacy data to the new system.
  Configuration Issues: There may be configuration issues in the system that prevent the proper linking of legacy IDs to internal IDs.
  Data Consistency: The data in the legacy system may not have been properly cleaned or validated before migration, leading to inconsistencies.
  Incorrect Input: The legacy ID provided may be incorrect or not formatted as expected.
  
  Solution:
  
  Check Data Migration: Verify that the data migration process was completed successfully and that all necessary mappings between legacy IDs and internal IDs were established.
  Validate Legacy IDs: Ensure that the legacy IDs being used are correct and exist in the source system. You may need to cross-reference with the original data.
  Review Configuration: Check the configuration settings related to the financial accounting module to ensure that they are set up correctly for handling legacy data.
  Use Transaction Codes: Utilize relevant transaction codes (like OBD2, OBD3, etc.) to check the configuration of the financial accounting settings and ensure that the legacy data is properly integrated.
  Consult Documentation: Refer to SAP documentation or notes related to the specific error message for additional troubleshooting steps or patches that may address the issue.
  Contact Support: If the issue persists, consider reaching out to SAP support for assistance, providing them with the error details and context.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes related to financial accounting and data migration, such as FB01, FB50, FBL1N, etc.
  SAP Notes: Search for SAP Notes that may address this specific error or provide guidance on data migration issues.
  Data Migration Tools: If you are using tools like LSMW (Legacy System Migration Workbench) or SAP Data Services, ensure that the mappings and transformation rules are correctly defined.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.