How To Fix CNV_DMC_SIN123 - Country Key cannot be initial in the conversion rule &1, Region is &2

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 123

• Message text: Country Key cannot be initial in the conversion rule &1, Region is &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_SIN123 - Country Key cannot be initial in the conversion rule &1, Region is &2 ?

  The SAP error message CNV_DMC_SIN123 indicates that there is an issue with the conversion rule in the Data Migration Cockpit (DMC) related to the country key being initialized (i.e., empty or null) when it should not be. This error typically arises during data migration processes, particularly when dealing with country-specific data.
  Cause:
  
  Empty Country Key: The error occurs because the country key is not provided or is set to an initial value (empty) in the conversion rule.
  Incorrect Mapping: There may be a mapping issue where the source data does not have a corresponding country key defined in the target system.
  Configuration Issues: The configuration of the migration project may not be set up correctly, leading to missing or incorrect country key assignments.
  
  Solution:
  
  Check Conversion Rules: Review the conversion rules in the DMC to ensure that the country key is correctly defined and not left empty. Make sure that the country key is populated for all relevant records.
  Data Validation: Validate the source data to ensure that it contains valid country keys that can be mapped to the target system. If the source data is missing country keys, you may need to update it before migration.
  Mapping Configuration: Ensure that the mapping between the source and target systems is correctly configured, particularly for country-related fields. This may involve checking the mapping tables or transformation rules.
  Consult Documentation: Refer to SAP documentation or guides related to the Data Migration Cockpit for specific instructions on handling country keys and conversion rules.
  Testing: After making the necessary adjustments, perform a test migration to verify that the issue has been resolved.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling country keys in data migration.
  DMC Documentation: Review the official SAP documentation for the Data Migration Cockpit, which may provide insights into best practices for setting up conversion rules and handling country keys.
  Community Forums: Consider reaching out to SAP community forums or support channels for additional assistance or to see if others have encountered and resolved similar issues.
  
  By addressing the root cause of the empty country key and ensuring proper configuration and mapping, you should be able to resolve the CNV_DMC_SIN123 error.