CNV301 - For table &1, field &2, the field parameter &3 does not exist.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 301

• Message text: For table &1, field &2, the field parameter &3 does not exist.

What causes this issue?

Field &V3& of table &V1& is a parameter of the form routine used to
convert field &V2&.
Table &V1& does not contain field &V3& .

How to fix this error?

Change the parameter &V3& of the form routine used to convert field
&V2&.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

AnswerBot

• What is the cause and solution for SAP error message CNV301 - For table &1, field &2, the field parameter &3 does not exist. ?

  The SAP error message CNV301 typically indicates that there is an issue with a data conversion or migration process, specifically related to a field in a table that is expected to exist but does not. This error is often encountered during data migration projects, especially when using tools like SAP's Data Migration Workbench or during system upgrades.
  Cause:
  
  
  Field Does Not Exist: The most straightforward cause is that the field specified in the error message does not exist in the target table. This could be due to:
  
  Changes in the data model (e.g., fields being removed or renamed).
  Incorrect mapping in the migration configuration.
  The source system having a different structure than the target system.
  
  
  
  Incorrect Configuration: The migration or conversion configuration may be incorrectly set up, leading to references to non-existent fields.
  
  
  Version Mismatch: If the source and target systems are on different versions of SAP, there may be discrepancies in the data model.
  
  
  Solution:
  
  
  Check Field Existence: Verify that the field mentioned in the error message actually exists in the target table. You can do this by checking the Data Dictionary (SE11) in the SAP system.
  
  
  Review Migration Mapping: Go through the migration mapping configuration to ensure that all fields are correctly mapped and that there are no references to fields that do not exist in the target structure.
  
  
  Update Data Model: If the field is supposed to exist but does not, you may need to update the data model in the target system to include the missing field. This could involve adding a new field or adjusting the existing structure.
  
  
  Consult Documentation: Review the documentation for the migration tool you are using to ensure that you are following the correct procedures and that your configurations align with the expected data model.
  
  
  Check for Version Compatibility: If you suspect a version mismatch, consult SAP notes or documentation to understand the differences in data models between the versions you are working with.
  
  
  Testing: After making changes, perform a test migration to ensure that the error is resolved and that data is being migrated correctly.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to the specific error message or the migration tool you are using.
  Data Migration Workbench: Familiarize yourself with the Data Migration Workbench and its functionalities, as it provides tools for mapping and transforming data.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the CNV301 error and implement a solution to resolve it.