How To Fix TXS_MESSAGES020 - System cannot instantiate class &

SAP Error Message - Details

• Message type: E = Error

• Message class: TXS_MESSAGES - Tax Service Messages class

• Message number: 020

• Message text: System cannot instantiate class &

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Contact your system administrator.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TXS_MESSAGES020 - System cannot instantiate class & ?

  The SAP error message TXS_MESSAGES020 indicates that the system cannot instantiate a class, which is typically related to issues with the configuration or implementation of a class in the SAP system. This error can occur in various contexts, such as when working with Business Add-Ins (BAdIs), enhancements, or custom classes.
  Causes:
  
  Missing Class Implementation: The class that the system is trying to instantiate may not exist or may not be properly implemented.
  Incorrect Class Name: There may be a typo or incorrect naming in the class reference.
  Authorization Issues: The user may not have the necessary authorizations to access or instantiate the class.
  Transport Issues: If the class was recently transported from another system, there may have been issues during the transport process.
  Dependency Issues: The class may depend on other classes or components that are not available or not activated.
  
  Solutions:
  
  Check Class Existence: Verify that the class exists in the system. You can do this by using transaction code SE24 (Class Builder) to search for the class.
  Review Implementation: If the class exists, check its implementation to ensure it is correctly defined and does not contain errors.
  Correct Class Name: Ensure that the class name is correctly referenced in the code or configuration where the error occurs.
  Check Authorizations: Ensure that the user has the necessary authorizations to access and instantiate the class.
  Transport Check: If the class was recently transported, check the transport logs for any errors and ensure that all dependencies were transported correctly.
  Activate Dependencies: If the class depends on other classes or components, ensure that those are activated and available in the system.
  
  Related Information:
  
  Transaction Codes: 
  
  SE24: Class Builder to check and manage classes.
  SE80: Object Navigator to explore various objects, including classes.
  SE37: Function Module to check if the class is being used in function modules.
  
  
  Debugging: If the error occurs during runtime, consider using the debugger to trace the execution and identify where the instantiation fails.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or development team for further investigation.