How To Fix CNV20400206 - Error while setting field &1-&2 to NOTUSE=' ' for the merge

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20400 - Message class CNV20400

• Message number: 206

• Message text: Error while setting field &1-&2 to NOTUSE=' ' for the merge

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 CNV20400206 - Error while setting field &1-&2 to NOTUSE=' ' for the merge ?

  The SAP error message CNV20400206 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is an issue with setting a specific field to a value of NOTUSE=' ' during a merge operation.
  Cause:
  The error can be caused by several factors, including:
  
  Data Integrity Issues: The field you are trying to set may have constraints or dependencies that prevent it from being set to a blank or null value.
  Configuration Issues: There may be configuration settings in the migration tool or the target system that do not allow for the field to be set to NOTUSE=' '.
  Field Mapping Problems: The mapping of fields between the source and target systems may not be correctly defined, leading to conflicts during the merge.
  Data Type Mismatch: The data type of the field in the source system may not match the expected data type in the target system, causing issues during the merge process.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  Check Field Constraints: Review the constraints and dependencies of the field in the target system. Ensure that setting it to a blank value is allowed.
  Review Configuration: Check the configuration settings in the migration tool to ensure that they are set up correctly for the merge operation.
  Validate Field Mapping: Ensure that the field mappings between the source and target systems are correctly defined. Make any necessary adjustments to the mapping.
  Data Type Verification: Verify that the data types of the fields in both the source and target systems are compatible. If there is a mismatch, consider converting the data to the appropriate type before the merge.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be additional guidelines or troubleshooting steps provided for this error.
  Check Logs: Review the logs generated during the migration process for any additional error messages or warnings that may provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for any known issues or best practices related to data migration.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to successfully complete the merge operation.