How To Fix CNV_12000126 - '&1' old value: '&2' language: '&3'

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_12000 - Messages for shorttext and description conversion

• Message number: 126

• Message text: '&1' old value: '&2' language: '&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?

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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_12000126 - '&1' old value: '&2' language: '&3' ?

  The SAP error message CNV_12000126 typically relates to data conversion issues during a migration or data transfer process, particularly in the context of SAP's data migration tools. This error message indicates that there is a problem with the language-specific data being processed.
  Cause:
  The error message CNV_12000126 can occur due to several reasons, including:
  
  Inconsistent Data: The old value for a specific field may not match the expected format or value in the target system, especially when dealing with language-specific data.
  Missing Language Entries: The target system may not have the necessary language entries or translations for the data being migrated.
  Data Mapping Issues: There may be issues with how data is mapped from the source to the target system, particularly for fields that are language-dependent.
  Configuration Issues: Incorrect configuration settings in the migration tool or the target system can lead to this error.
  
  Solution:
  To resolve the CNV_12000126 error, you can take the following steps:
  
  Check Data Consistency: Review the data being migrated to ensure that the old values are consistent and correctly formatted. Look for any discrepancies in the language-specific fields.
  Verify Language Settings: Ensure that the target system has the necessary language settings and that all required language entries are present. You may need to add missing translations or language entries.
  Review Mapping Configuration: Check the mapping configuration in the migration tool to ensure that data is being mapped correctly from the source to the target system. Make adjustments as necessary.
  Consult Migration Documentation: Refer to the SAP migration documentation for specific guidelines related to the data migration process you are using. This may provide insights into common issues and their resolutions.
  Use Transaction Codes: Utilize relevant transaction codes (like SE11 for data dictionary, SE37 for function modules) to analyze the data structures and ensure they align with the migration requirements.
  Log Analysis: Review the logs generated during the migration process for additional error messages or warnings that may provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific migration tool you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) for any known issues or patches.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the context in which it occurred.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the CNV_12000126 error message.