How To Fix SH021 - Field names of call and authorization are different

SAP Error Message - Details

• Message type: E = Error

• Message class: SH - SAPhelp messages

• Message number: 021

• Message text: Field names of call and authorization are different

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SH021 - Field names of call and authorization are different ?

  The SAP error message SH021, which states "Field names of call and authorization are different," typically occurs in the context of SAP's authorization checks, particularly when dealing with function modules or methods that require specific authorization objects.
  Cause:
  This error arises when there is a mismatch between the field names expected by the authorization check and the field names provided in the call. This can happen due to several reasons, including:
  
  Incorrect Field Mapping: The fields in the authorization object do not match the fields being passed in the function call.
  Changes in Authorization Objects: If there have been changes to the authorization objects or the fields they contain, it may lead to discrepancies.
  Custom Development: If there is custom code that calls standard SAP functions or methods, and the field names do not align with the expected authorization fields, this error can occur.
  
  Solution:
  To resolve the SH021 error, you can take the following steps:
  
  
  Check Authorization Object: Verify the authorization object being used in the function module or method. Ensure that the field names in the authorization object match the fields being passed in the call.
  
  
  Review Function Module/Method: Look at the function module or method that is generating the error. Check the parameters being passed and ensure they align with the expected fields in the authorization check.
  
  
  Debugging: Use the SAP debugger to trace the execution of the code. This can help identify where the mismatch is occurring. Look for the specific line of code that triggers the authorization check.
  
  
  Consult Documentation: Review the SAP documentation for the specific function module or method to understand the expected parameters and authorization checks.
  
  
  Adjust Custom Code: If the error is occurring in custom code, you may need to adjust the field names being passed to match the expected authorization fields.
  
  
  Authorization Roles: Ensure that the user has the appropriate roles and authorizations assigned. Sometimes, the issue may be related to missing authorizations rather than a field mismatch.
  
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SU53 (to analyze authorization failures) and SU01 (to manage user authorizations) to troubleshoot authorization issues.
  Authorization Objects: Familiarize yourself with the relevant authorization objects and their field definitions. You can use transaction SU21 to view and manage authorization objects.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on authorization checks.
  
  By following these steps, you should be able to identify and resolve the cause of the SH021 error in your SAP system.