How To Fix DT235 - Field & does not have a preceding length field of type &

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 235

• Message text: Field & does not have a preceding length field of type &

What causes this issue?

The table contains a long field (data type LCHR or LRAW), which does
not have a preceding length field. Long fields require a preceding
length field of type INT4.

System Response

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

How to fix this error?

Include a length field of type INT4 in the table. It must be located
directly before the long field in the field list. Please also note that
long fields must be located at the very end of the field list.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT235 - Field & does not have a preceding length field of type & ?

  The SAP error message DT235 indicates that there is an issue with the data structure definition in your ABAP program or data dictionary. Specifically, it means that a field in a structure does not have a preceding length field of the appropriate type. This typically occurs in the context of defining structures for internal tables or when working with certain data types.
  Cause:
  
  Incorrect Structure Definition: The structure you are trying to use may not be defined correctly. For example, if you are using a structure that is expected to have a length field (like a string or a packed number), but it does not, this error will occur.
  Data Type Mismatch: The field types in your structure may not match the expected types. For instance, if a field is defined as a character type but is being treated as a numeric type, this can lead to the error.
  Inconsistent Data Dictionary: If there are inconsistencies in the data dictionary definitions, such as changes that have not been activated or inconsistencies between the data element and the domain, this can also trigger the error.
  
  Solution:
  
  Check Structure Definition: Review the structure definition in the ABAP Dictionary (transaction SE11). Ensure that all fields are defined correctly and that any required length fields are present.
  Correct Data Types: Make sure that the data types of the fields are appropriate for their intended use. If a field is supposed to be a length field, ensure it is defined as such.
  Activate Changes: If you have made changes to the data dictionary, ensure that you have activated those changes. Sometimes, changes may not take effect until they are activated.
  Review Code: If the error occurs in a specific piece of code, review that code to ensure that you are using the correct structure and that you are not trying to access fields that do not exist or are not defined properly.
  Consult Documentation: If you are unsure about the structure or data types, refer to SAP documentation or consult with a colleague who has experience with the specific data structures you are working with.
  
  Related Information:
  
  Transaction Codes: Use SE11 to view and edit data dictionary objects, SE80 for object navigator, and SE37 for function modules.
  Data Types: Familiarize yourself with the different data types in ABAP, especially those that require length fields (e.g., STRING, RAWSTRING, etc.).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message, as there may be specific fixes or recommendations provided by SAP.
  
  By following these steps, you should be able to identify and resolve the issue causing the DT235 error message in your SAP environment.