How To Fix CNV_MBT152 - No instructions found for upgrade modifications

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 152

• Message text: No instructions found for upgrade modifications

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_MBT152 - No instructions found for upgrade modifications ?

  The SAP error message CNV_MBT152: No instructions found for upgrade modifications typically occurs during the upgrade process of an SAP system, particularly when using the SAP Software Update Manager (SUM) or during a system conversion. This error indicates that the system is unable to find the necessary instructions or modifications that are required for the upgrade process.
  Causes:
  
  Missing Upgrade Instructions: The upgrade package may not contain the necessary instructions for the modifications that need to be applied.
  Incorrect or Incomplete Configuration: The configuration settings for the upgrade might be incorrect or incomplete, leading to the system not being able to locate the required instructions.
  Version Compatibility Issues: The version of the source system may not be compatible with the target version, leading to missing upgrade paths or instructions.
  Custom Code Issues: Custom developments or modifications in the source system may not have corresponding upgrade instructions in the target version.
  
  Solutions:
  
  Check Upgrade Package: Ensure that you are using the correct and complete upgrade package. Verify that all necessary components are included.
  Review Upgrade Guide: Consult the official SAP upgrade guide for your specific version to ensure that all prerequisites and steps have been followed correctly.
  SAP Notes: Search for relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide solutions or workarounds for known issues.
  Custom Code Adjustment: If custom code is involved, review the custom developments to ensure they are compatible with the target version. You may need to adjust or rewrite some parts of the code.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. They can provide insights based on the specific details of your upgrade scenario.
  
  Related Information:
  
  SAP Notes: Look for SAP Notes related to the CNV_MBT152 error. These notes often contain specific instructions or patches that can resolve the issue.
  Upgrade Documentation: Review the official SAP documentation for the upgrade process, which may provide additional context or troubleshooting steps.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can share their solutions.
  
  Best Practices:
  
  Always perform a backup of your system before starting an upgrade.
  Test the upgrade process in a sandbox or development environment before applying it to the production system.
  Keep your system and components updated to the latest versions to minimize compatibility issues.
  
  By following these steps, you should be able to address the CNV_MBT152 error and successfully proceed with your SAP upgrade.