How To Fix RSTT1015 - Type descriptor does not match expected subtype

SAP Error Message - Details

• Message type: E = Error

• Message class: RSTT1 - Trace Tool: Message Class for Trace Objects

• Message number: 015

• Message text: Type descriptor does not match expected subtype

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSTT1015 - Type descriptor does not match expected subtype ?

  The SAP error message RSTT1015: Type descriptor does not match expected subtype typically occurs in the context of SAP's transport management system or when dealing with data types in ABAP programs. This error indicates that there is a mismatch between the expected data type and the actual data type being processed.
  Causes:
  
  Data Type Mismatch: The most common cause is that the program or function module is expecting a certain data type (e.g., a specific structure or table type) but is receiving a different one.
  Changes in Data Dictionary: If there have been recent changes to the data dictionary (like changes to structures or tables), it may lead to inconsistencies in the expected data types.
  Transport Issues: If the transport request is not correctly imported or if there are inconsistencies between the development and production environments, this error can occur.
  Incorrect Function Module/Method Call: Calling a function module or method with parameters that do not match the expected types can also trigger this error.
  
  Solutions:
  
  Check Data Types: Review the data types in the ABAP program or function module where the error occurs. Ensure that the expected types match the actual types being passed.
  Review Changes: If there have been recent changes to the data dictionary, check if those changes have been properly transported and activated in the target system.
  Re-import Transport Requests: If the error is related to transport issues, consider re-importing the transport requests to ensure that all objects are correctly synchronized.
  Debugging: Use the ABAP debugger to trace the execution of the program and identify where the type mismatch occurs. This can help pinpoint the exact location and cause of the error.
  Check Function Module/Method Signatures: Ensure that the signatures of any function modules or methods being called match the expected parameters in terms of type and structure.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to this error message for any specific patches or updates that may address the issue.
  ABAP Documentation: Review the ABAP documentation for guidelines on data types and structures to ensure compliance with best practices.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, providing insights or solutions from other users.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with an SAP Basis or ABAP expert who can provide deeper insights into the specific environment and configuration.