How To Fix CNV_MBT494 - Deletion technique for & cannot be changed due to data loss possibility

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 494

• Message text: Deletion technique for & cannot be changed due to data loss possibility

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_MBT494 - Deletion technique for & cannot be changed due to data loss possibility ?

  The SAP error message CNV_MBT494 typically occurs in the context of data migration or data transformation processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the deletion technique for a specific object cannot be changed because doing so could lead to potential data loss.
  Cause:
  The error arises when there is an attempt to change the deletion technique for a data object that is already in use or has existing data. The deletion technique defines how data is handled during the migration process, and changing it could result in the loss of important data or integrity issues.
  Solution:
  To resolve this error, consider the following steps:
  
  
  Review the Deletion Technique: Check the current deletion technique set for the object in question. Ensure that it aligns with your data migration strategy and requirements.
  
  
  Data Integrity Check: Before making any changes, perform a thorough check of the existing data. Ensure that changing the deletion technique will not compromise data integrity.
  
  
  Consult Documentation: Refer to SAP documentation or migration guides related to the specific object or data migration process you are working with. This can provide insights into the implications of changing the deletion technique.
  
  
  Use the Correct Migration Approach: If the deletion technique needs to be changed, consider whether a different migration approach or tool might be more appropriate for your needs.
  
  
  Seek Expert Advice: If you are unsure about the implications of changing the deletion technique, consult with an SAP expert or a consultant who specializes in data migration.
  
  
  Testing: If you decide to proceed with changing the deletion technique, conduct thorough testing in a non-production environment to ensure that the change does not lead to data loss or integrity issues.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its functionalities, as it may have specific settings or configurations that can help mitigate this issue.
  Data Migration Best Practices: Review best practices for data migration in SAP environments to ensure a smooth transition and minimize the risk of errors.
  
  By following these steps, you should be able to address the CNV_MBT494 error effectively while ensuring the integrity of your data during the migration process.