How To Fix 10027 - Sequential number exists already

SAP Error Message - Details

• Message type: E = Error

• Message class: 10 - Customizing: Process Industries

• Message number: 027

• Message text: Sequential number exists already

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 10027 - Sequential number exists already ?

  The SAP error message "10027: Sequential number exists already" typically occurs when there is an attempt to create a new document (such as an invoice, purchase order, etc.) that requires a unique sequential number, but the number being used is already in the system. This can happen in various modules, including FI (Financial Accounting), MM (Materials Management), and SD (Sales and Distribution).
  Cause:
  
  Duplicate Numbering: The system is trying to assign a sequential number that has already been used for another document.
  Number Range Configuration: The number range configuration for the document type may not be set up correctly, leading to overlaps or incorrect assignments.
  Manual Entry: If users are manually entering document numbers, they may inadvertently enter a number that already exists.
  Data Migration Issues: If data has been migrated from another system, there may be conflicts with existing numbers.
  
  Solution:
  
  Check Existing Documents: Verify if the document number you are trying to use already exists in the system. You can do this by searching for the document in the relevant transaction.
  Adjust Number Range: 
  
  Go to the transaction code SNRO (Number Range Objects) and check the configuration for the relevant number range object.
  Ensure that the number range is correctly defined and that there are no overlaps.
  
  
  Use Automatic Number Assignment: If possible, allow the system to automatically assign the next available number instead of manually entering it.
  Review Custom Code: If there is any custom code or user exits that manipulate document numbers, review them to ensure they are not causing conflicts.
  Consult with Basis Team: If the issue persists, consult with your SAP Basis team to check for any underlying system issues or inconsistencies in the database.
  Check for Data Migration Issues: If this error occurred after a data migration, review the migration process to ensure that no duplicate numbers were introduced.
  
  Related Information:
  
  Transaction Codes: 
  
  SNRO: To manage number ranges.
  SE11: To view the data dictionary and check the table structure.
  SE16: To view table entries directly.
  
  
  Documentation: Refer to SAP Help documentation for detailed information on number range management and error handling.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to resolve the "10027: Sequential number exists already" error in SAP.