How To Fix SDDL_PARSER_MSG129 - PRESERVE TYPE can only be used with CAST on a data element

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDL_PARSER_MSG - Message Class for DDL Parser

• Message number: 129

• Message text: PRESERVE TYPE can only be used with CAST on a data element

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDL_PARSER_MSG129 - PRESERVE TYPE can only be used with CAST on a data element ?

  The SAP error message SDDL_PARSER_MSG129 with the description "PRESERVE TYPE can only be used with CAST on a data element" typically occurs in the context of using the SAP Data Definition Language (DDL) or when working with data types in ABAP (Advanced Business Application Programming).
  Cause:
  This error arises when you are trying to use the PRESERVE TYPE option in a context where it is not applicable. The PRESERVE TYPE option is intended to be used with the CAST statement to ensure that the type of a data element is preserved during type conversion. If you attempt to use PRESERVE TYPE in a situation that does not involve a CAST operation or with a non-data element, this error will be triggered.
  Solution:
  To resolve this error, you should:
  
  
  Check Your Code: Review the code where the error occurs. Ensure that you are using PRESERVE TYPE only in conjunction with a CAST operation on a data element.
  
  
  Correct Usage: If you are using PRESERVE TYPE incorrectly, modify your code to either remove it or ensure it is used correctly with a CAST. For example:
  DATA(lv_value) = CAST my_type( lv_source ) PRESERVE TYPE.
  Ensure that lv_source is a data element that can be cast to my_type.
  
  
  Consult Documentation: If you are unsure about the correct usage of PRESERVE TYPE and CAST, refer to the official SAP documentation or ABAP programming guidelines for more details on data type handling.
  
  
  Testing: After making the necessary changes, test your code to ensure that the error is resolved and that the functionality works as expected.
  
  
  Related Information:
  
  ABAP Data Types: Understanding the different data types in ABAP and how they interact with each other can help prevent such errors.
  CAST Statement: Familiarize yourself with the CAST statement in ABAP, which is used to convert one data type to another.
  SAP Notes and Community: If the issue persists or if you need further assistance, consider checking SAP Notes or reaching out to the SAP Community for additional support.
  
  By following these steps, you should be able to resolve the error and ensure that your code adheres to the correct usage of data types in SAP.