How To Fix CLB020 - Unexpected exception &1 when calling &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CLB - SAIL: Common messages

• Message number: 020

• Message text: Unexpected exception &1 when calling &2

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 CLB020 - Unexpected exception &1 when calling &2 ?

  The SAP error message CLB020, which states "Unexpected exception &1 when calling &2," typically indicates that an unexpected error occurred during the execution of a function or method in the SAP system. This error can arise from various underlying issues, and the specific cause can vary depending on the context in which the error occurs.
  Possible Causes:
  
  Programming Errors: There may be bugs in the ABAP code or in the implementation of the function module or method being called.
  Data Issues: The data being processed may be invalid or inconsistent, leading to exceptions during execution.
  Configuration Problems: Incorrect configuration settings in the system can lead to unexpected behavior.
  System Resource Issues: Insufficient memory or other system resources can cause unexpected exceptions.
  Transport Issues: If the code was recently transported from a development environment, there may be inconsistencies or missing objects.
  
  Solutions:
  
  Check the Error Log: Use transaction codes like SLG1 (Application Log) to check for detailed error logs that can provide more context about the exception.
  Debugging: If you have access to the ABAP code, you can set breakpoints and debug the function or method to identify the exact point of failure.
  Data Validation: Ensure that the data being processed is valid and meets the expected format and constraints.
  Review Configuration: Check the configuration settings related to the function or module that is throwing the error.
  System Resources: Monitor system performance and resource usage to ensure that there are no bottlenecks.
  Consult SAP Notes: Search the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide patches.
  Contact SAP Support: If the issue persists and cannot be resolved internally, consider reaching out to SAP Support for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE80 (Object Navigator), SE37 (Function Module), and SE24 (Class Builder) for debugging and analyzing the code.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  Documentation: Review the official SAP documentation for the specific function or method being called to understand its expected behavior and requirements.
  
  By following these steps, you should be able to diagnose and resolve the CLB020 error in your SAP system.