How To Fix LTR2_BASIS_CHECK411 - Sequence number &1 of table &2 is not unqiue

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR2_BASIS_CHECK - LTR2 Messages of Checks in Check Framework

• Message number: 411

• Message text: Sequence number &1 of table &2 is not unqiue

What causes this issue?

The sequence number &V1& of table &V2& is not unique.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check table &V2& in the the data model .

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message LTR2_BASIS_CHECK411 - Sequence number &1 of table &2 is not unqiue ?

  The SAP error message LTR2_BASIS_CHECK411 indicates that there is a problem with the uniqueness of a sequence number in a specific table. This error typically arises in the context of data consistency checks, particularly when dealing with logistics or inventory management modules.
  Cause:
  The error message "Sequence number &1 of table &2 is not unique" suggests that the system has detected duplicate entries for a sequence number in the specified table. This can occur due to various reasons, such as:
  
  Data Entry Errors: Manual data entry mistakes can lead to duplicate sequence numbers.
  Data Migration Issues: If data was migrated from another system, it may not have been properly validated, leading to duplicates.
  Concurrency Issues: Simultaneous transactions or processes might create duplicates if not properly managed.
  Custom Development: Custom programs or enhancements may inadvertently create duplicate entries.
  
  Solution:
  To resolve this issue, you can follow these steps:
  
  
  Identify Duplicates:
  
  Use SQL queries or SAP transaction codes (like SE16 or SE11) to check the specified table for duplicate entries based on the sequence number.
  Example SQL query:
  SELECT sequence_number, COUNT(*)
  FROM your_table_name
  GROUP BY sequence_number
  HAVING COUNT(*) > 1;
  
  
  
  
  Correct Data:
  
  Once duplicates are identified, you need to decide how to handle them. This may involve:
  
  Deleting the duplicate entries.
  Merging data if applicable.
  Correcting the sequence numbers to ensure uniqueness.
  
  
  
  
  
  Implement Validation:
  
  To prevent future occurrences, consider implementing validation checks during data entry or migration processes to ensure that sequence numbers remain unique.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific table and error message for any additional guidance or known issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists or if you are unsure about how to proceed, consider reaching out to SAP support for assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE16 (Data Browser), SE11 (Data Dictionary), and SE80 (Object Navigator) for analyzing and modifying table entries.
  SAP Notes: Check the SAP Support Portal for any notes related to this error message or the specific table in question.
  Data Consistency Checks: Regularly perform data consistency checks in your SAP system to identify and resolve potential issues before they lead to errors.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.