How To Fix CNV20200294 - Field &1 with length &2 is not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 294

• Message text: Field &1 with length &2 is not supported

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 CNV20200294 - Field &1 with length &2 is not supported ?

  The SAP error message CNV20200294, which states "Field &1 with length &2 is not supported," typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of specific programs related to data transfer.
  Cause:
  This error generally arises due to the following reasons:
  
  
  Field Length Exceeding Limits: The field in question has a length that exceeds the maximum allowed length for that particular field in the target system or table. This can happen if the source system has a field defined with a longer length than what is defined in the target system.
  
  
  Unsupported Data Types: The data type of the field may not be supported in the target system. For example, certain data types in the source system may not have a direct equivalent in the target system.
  
  
  Configuration Issues: There may be configuration issues in the migration settings that do not align with the data structure of the source or target systems.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Field Definitions: Review the field definitions in both the source and target systems. Ensure that the lengths and data types are compatible. If the source field is longer, consider truncating the data or adjusting the target field definition if possible.
  
  
  Data Mapping: If you are using a data migration tool, check the mapping configuration. Ensure that the fields are correctly mapped and that the lengths and types are compatible.
  
  
  Data Transformation: If necessary, implement data transformation rules to convert or truncate the data before migration. This can be done using transformation tools or scripts.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be specific guidelines or limitations regarding field lengths and data types.
  
  
  Testing: Conduct thorough testing with a subset of data to ensure that the migration process works without errors before attempting a full migration.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling field length issues during migration.
  
  
  Related Information:
  
  SAP Data Migration Tools: Familiarize yourself with the tools you are using for data migration, such as SAP S/4HANA Migration Cockpit, SAP Data Services, or LSMW (Legacy System Migration Workbench).
  Field Lengths in SAP: Understand the standard field lengths for various data types in SAP. This information can usually be found in the Data Dictionary (SE11) or relevant SAP documentation.
  Error Logs: Review any error logs generated during the migration process for additional context or related errors that may help in diagnosing the issue.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.