How To Fix CNV_12000135 - Some descriptions have too many characters

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_12000 - Messages for shorttext and description conversion

• Message number: 135

• Message text: Some descriptions have too many characters

Uploaded Description Exceeds Character Limit

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

One or more of the uploaded descriptions exceeds the character limit.
You have the following options:
Proceed with the upload
The description texts that exceed the character limit are not uploaded.
You must can adjust these descriptions afterwards if you want to update
them.
Cancel the upload
The file is not uploaded. You can adjust the descriptions in the file,
and upload the file again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_12000135 - Some descriptions have too many characters ?

  The SAP error message CNV_12000135 indicates that some descriptions in your data exceed the maximum character limit allowed by the system. This error typically arises during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of certain programs that involve data transfer.
  Cause:
  The error is caused by one or more fields in your data containing descriptions or text strings that exceed the predefined character limit set by SAP. Each field in SAP has a specific length, and if the data being imported or processed exceeds this length, the system will throw this error.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify the Fields: Determine which fields are causing the issue. This can often be done by reviewing the logs or error messages that accompany the CNV_12000135 error.
  
  
  Check Character Limits: Refer to the SAP documentation or the data model to find out the maximum character limits for the fields in question.
  
  
  Trim or Shorten Descriptions: Modify the data to ensure that all descriptions fit within the allowed character limits. This may involve:
  
  Trimming excess characters.
  Abbreviating descriptions.
  Splitting long descriptions into multiple fields if applicable.
  
  
  
  Data Validation: Before re-running the migration or data import, validate the data to ensure that all descriptions comply with the character limits.
  
  
  Testing: After making the necessary adjustments, test the data import or migration process again to confirm that the error has been resolved.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or updates related to this error.
  Data Migration Tools: Familiarize yourself with the specific data migration tools you are using (e.g., SAP S/4HANA Migration Cockpit, LSMW) as they may have specific requirements or settings that can help manage character limits.
  Field Lengths: You can often find field lengths in the Data Dictionary (transaction SE11) by looking up the relevant table and field definitions.
  
  By following these steps, you should be able to resolve the CNV_12000135 error and successfully complete your data migration or import process.