How To Fix CNV_10030004 - Error while writing to table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10030 - Message class for package 10030

• Message number: 004

• Message text: Error while writing to 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10030004 - Error while writing to table &1 ?

  The SAP error message CNV_10030004, which indicates "Error while writing to table &1," typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of a conversion program. This error can arise due to various reasons, including:
  Causes:
  
  Database Locking Issues: The target table may be locked by another process, preventing the current operation from writing data.
  Data Integrity Violations: The data being written may violate constraints such as primary keys, foreign keys, or unique constraints in the target table.
  Insufficient Authorizations: The user executing the operation may not have the necessary permissions to write to the specified table.
  Table Structure Changes: If the structure of the target table has changed (e.g., fields added or removed), it may lead to issues when trying to write data.
  Data Type Mismatches: The data being written may not match the expected data types of the target table fields.
  System Resource Limitations: Insufficient memory or disk space can also lead to write failures.
  
  Solutions:
  
  Check Database Locks: Use transaction codes like SM12 to check for locks on the target table and resolve any conflicts.
  Review Data: Validate the data being written to ensure it adheres to the constraints of the target table. This includes checking for duplicates, null values in non-nullable fields, and data type compatibility.
  Verify Authorizations: Ensure that the user has the necessary authorizations to perform write operations on the target table.
  Check Table Structure: Confirm that the structure of the target table matches the data being written. If there have been changes, adjust the data or the table structure accordingly.
  Monitor System Resources: Check for available memory and disk space. If resources are low, consider freeing up space or increasing system resources.
  Review Logs: Check the application logs (transaction SLG1) for more detailed error messages that can provide additional context about the failure.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), SLG1 (Application Log), and ST22 (Dump Analysis) to gather more information about the error.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Data Migration Tools: If using tools like SAP S/4HANA Migration Cockpit or SAP Data Services, refer to their documentation for specific guidelines and best practices.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or technical team for further investigation.