How To Fix CNV_NCE_BAS121 - &1 &2 &3 &4

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 121

• Message text: &1 &2 &3 &4

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_NCE_BAS121 - &1 &2 &3 &4 ?

  The SAP error message CNV_NCE_BAS121 typically relates to issues encountered during data migration or conversion processes, particularly in the context of SAP's data migration tools. This error message is part of the SAP Conversion and Migration tools, which are used to facilitate the transfer of data from legacy systems to SAP systems.
  Cause:
  The error message CNV_NCE_BAS121 can occur due to various reasons, including but not limited to:
  
  Data Inconsistencies: The data being migrated may have inconsistencies or errors that prevent successful conversion.
  Configuration Issues: There may be misconfigurations in the migration settings or parameters that lead to the error.
  Missing Data: Required data fields may be missing or not properly mapped during the migration process.
  Technical Limitations: There could be limitations in the target SAP system that prevent the successful import of certain data types or structures.
  
  Solution:
  To resolve the CNV_NCE_BAS121 error, you can take the following steps:
  
  Check the Error Details: The error message usually includes additional details (represented by &1, &2, &3, &4) that can provide insights into the specific issue. Review these details carefully.
  Data Validation: Validate the data being migrated to ensure there are no inconsistencies or missing fields. Use data quality tools if necessary.
  Review Configuration: Check the configuration settings for the migration process. Ensure that all parameters are correctly set and that the mapping of fields is accurate.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool you are using. There may be known issues or additional troubleshooting steps provided.
  Logs and Traces: Review logs and traces generated during the migration process to identify any underlying issues that may not be immediately apparent.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. They can provide more specific guidance based on the error details and your system configuration.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Tools: Familiarize yourself with the specific migration tools you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) as they may have unique features or requirements.
  Community 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 diagnose and resolve the CNV_NCE_BAS121 error effectively.