How To Fix CNV_DMC_SIN342 - Unexpected legacy contract number &1 in the company code &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_SIN - Messages for s-innovations migration

• Message number: 342

• Message text: Unexpected legacy contract number &1 in the company code &2

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_DMC_SIN342 - Unexpected legacy contract number &1 in the company code &2 ?

  The SAP error message CNV_DMC_SIN342, which indicates "Unexpected legacy contract number &1 in the company code &2," typically arises during data migration processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error suggests that the system has encountered a legacy contract number that it did not expect to find in the specified company code.
  Cause:
  
  Data Inconsistency: The legacy data being migrated may contain contract numbers that do not match the expected format or range defined in the target SAP system.
  Configuration Issues: The company code may not be properly configured to recognize or process the legacy contract numbers.
  Mapping Errors: There may be issues with the mapping of legacy data to the new system, leading to unexpected contract numbers being referenced.
  Missing Data: The contract number may not exist in the target system, or there may be missing entries in the migration data.
  
  Solution:
  
  Data Validation: Check the legacy data for inconsistencies. Ensure that the contract numbers are valid and conform to the expected format for the target company code.
  Configuration Review: Verify the configuration settings for the company code in the target SAP system. Ensure that it is set up to handle the legacy contract numbers appropriately.
  Mapping Review: Review the mapping rules used during the migration process. Ensure that the legacy contract numbers are correctly mapped to the new system's structure.
  Data Correction: If you find any discrepancies in the legacy data, correct them before re-running the migration process.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration process you are using for any additional guidance or troubleshooting steps.
  Testing: Conduct thorough testing with a smaller dataset to ensure that the migration process works as expected before attempting a full migration.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Migration Tools: Familiarize yourself with the SAP Data Migration Cockpit and its functionalities, as well as any specific tools or methodologies being used for the migration.
  Support: If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who specializes in data migration.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.