How To Fix CNV_10520045 - Critical exception &1 occured during the simulation

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10520 - Conversion module of FI-CA FIKEY-logic

• Message number: 045

• Message text: Critical exception &1 occured during the simulation

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_10520045 - Critical exception &1 occured during the simulation ?

  The SAP error message CNV_10520045 indicates that a critical exception occurred during a simulation process, typically related to data migration or conversion activities in SAP systems. This error is often encountered in the context of SAP S/4HANA migrations or during the use of the SAP Landscape Transformation (SLT) tool.
  Possible Causes:
  
  Data Inconsistencies: There may be inconsistencies or issues with the data being processed, such as missing mandatory fields or incorrect data formats.
  Configuration Issues: Incorrect configuration settings in the migration or conversion tools can lead to exceptions during simulation.
  System Resource Limitations: Insufficient system resources (memory, CPU) can cause the simulation to fail.
  Custom Code or Enhancements: Custom code or enhancements that interfere with standard processes may lead to unexpected exceptions.
  Version Compatibility: The tools or programs being used may not be compatible with the current version of the SAP system.
  
  Solutions:
  
  Check Logs: Review the detailed logs associated with the error message. This can provide insights into what specifically caused the exception.
  Data Validation: Ensure that the data being processed is complete and adheres to the required formats. Validate the data for any inconsistencies.
  Configuration Review: Double-check the configuration settings for the migration or conversion process to ensure they are set up correctly.
  Resource Allocation: Monitor system resources during the simulation. If resources are low, consider increasing them or running the simulation during off-peak hours.
  Debugging: If custom code is involved, debug the code to identify any issues that may be causing the exception.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide patches and updates.
  Consult Documentation: Review the official SAP documentation for the migration or conversion tool being used to ensure all steps are followed correctly.
  
  Related Information:
  
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. Provide them with the error message, logs, and any relevant details about the environment.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can share their solutions.
  Testing Environment: If possible, replicate the issue in a testing environment to troubleshoot without affecting production data.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.