How To Fix CNV203 - Error when saving table &1

CNV203 - Overview

• Message type: E = Error

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

• Message number: 203

• Message text: Error when saving table &1

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.

CNV203 - Details

• The SAP error message CNV203 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there was an issue when trying to save data into a specific table, denoted by &1 in the error message.
  Causes of CNV203 Error
  
  
  Data Validation Issues: The data being migrated may not meet the validation rules defined for the target table. This could include incorrect data types, missing mandatory fields, or data that violates business rules.
  
  
  Database Constraints: There may be constraints on the target table, such as primary key violations, foreign key constraints, or unique constraints that are being violated by the incoming data.
  
  
  Technical Issues: There could be technical issues such as database locks, insufficient authorizations, or problems with the database connection.
  
  
  
  Configuration Issues: The migration settings or mapping configurations may not be correctly set up, leading to issues when trying to