How To Fix CNV_20000253 - Accounting documents with prefix &1 already exist in CoCod &2 - NUMKR &3

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20000 - Messages for fiscal year change

• Message number: 253

• Message text: Accounting documents with prefix &1 already exist in CoCod &2 - NUMKR &3

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 CNV_20000253 - Accounting documents with prefix &1 already exist in CoCod &2 - NUMKR &3 ?

  The SAP error message CNV_20000253 indicates that there is a conflict with accounting document numbers during a data migration or conversion process. Specifically, it means that accounting documents with a certain prefix already exist in the specified company code (CoCod) and number range (NUMKR). This error typically arises during data migration activities, such as when using the SAP S/4HANA Migration Cockpit or other data transfer tools.
  Cause:
  
  Duplicate Document Numbers: The error occurs when the system detects that the document number being generated or imported already exists in the specified number range for the company code.
  Incorrect Number Range Configuration: The number range for accounting documents may not be set up correctly, leading to overlaps or conflicts.
  Data Migration Issues: If the data being migrated includes documents that have already been posted in the target system, this can lead to conflicts.
  
  Solution:
  
  Check Existing Documents: Verify if the document number with the specified prefix already exists in the target company code. You can do this by querying the relevant tables (e.g., BKPF for accounting documents).
  Adjust Number Range: If the number range is not configured correctly, you may need to adjust it. This can be done in the SAP system by navigating to:
  
  Transaction Code: OBA7 (for number range intervals)
  Ensure that the number range is set up to accommodate the incoming documents without conflicts.
  
  
  Change Document Prefix: If possible, modify the prefix of the incoming documents to avoid conflicts with existing documents.
  Data Cleansing: Before migration, ensure that the data being imported does not contain duplicates or conflicts with existing data in the target system.
  Use a Different Company Code: If the documents are not critical to the current company code, consider importing them into a different company code where there are no conflicts.
  
  Related Information:
  
  Transaction Codes: 
  
  OBD2: To maintain number ranges for accounting documents.
  SE16N: To view existing accounting documents in the BKPF table.
  
  
  Documentation: Refer to SAP Notes and documentation related to data migration and number range management for more detailed guidance.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the CNV_20000253 error and successfully complete your data migration or conversion process.