How To Fix FKK_ID105 - Lot key & already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: FKK_ID - Message class for FI-CA country specific development

• Message number: 105

• Message text: Lot key & already exists

Self-Explanatory Message

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FKK_ID105 - Lot key & already exists ?

  The SAP error message FKK_ID105 indicates that a lot key (or lot number) you are trying to create or use already exists in the system. This error typically occurs in the context of contract accounts receivable and payable (FI-CA) when dealing with lot management or when processing transactions that involve lot numbers.
  Cause:
  
  
  Duplicate Lot Key: The primary cause of this error is that the lot key you are trying to create or use is already present in the database. This can happen if:
  
  You are trying to create a new lot with a key that has already been assigned to another lot.
  There is a data entry error where the same lot key is being reused inadvertently.
  
  
  
  Data Migration Issues: If data has been migrated from another system or if there have been bulk uploads, it is possible that duplicate lot keys were introduced during this process.
  
  
  Configuration Issues: There may be configuration settings in the system that are not aligned with the intended use of lot management.
  
  
  Solution:
  
  
  Check Existing Lot Keys: Before creating a new lot, check the existing lot keys in the system to ensure that the key you want to use is not already in use. You can do this by:
  
  Navigating to the relevant transaction or report that lists existing lots.
  Using transaction codes like FKK_ID or FBL5N to view existing lot numbers.
  
  
  
  Use a Unique Lot Key: If the lot key you are trying to use is already taken, consider using a different, unique lot key that does not conflict with existing entries.
  
  
  Data Cleanup: If you suspect that there are duplicate entries due to data migration or manual entry errors, perform a data cleanup to remove or consolidate duplicate lot keys.
  
  
  Review Configuration: Check the configuration settings related to lot management in your SAP system. Ensure that the settings are appropriate for your business processes and that they allow for the correct handling of lot keys.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on managing lot keys and resolving related errors.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They can provide insights based on your specific system configuration and usage.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FKK_ID (for managing lots) and FBL5N (for displaying customer line items) to help in troubleshooting.
  SAP Notes: Check for any SAP Notes related to the FKK_ID105 error for additional context or patches that may address the issue.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to resolve the FKK_ID105 error and manage lot keys effectively in your SAP system.