How To Fix DT228 - &-& (Recommended length for field of type &: &)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 228

• Message text: &-& (Recommended length for field of type &: &)

What causes this issue?

A certain length is recommended by your database for long fields (type
LCHR, LRAW).

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?

If possible, set the length of the corresponding domain to the
suggested value.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT228 - &-& (Recommended length for field of type &: &) ?

  The SAP error message DT228 typically indicates that there is a mismatch between the length of a field in a data structure and the expected length defined in the data dictionary. This error often arises when you are trying to assign a value to a field that exceeds its defined length.
  Cause:
  
  Field Length Mismatch: The primary cause of this error is that the data being assigned to a field exceeds the maximum length defined for that field in the data dictionary (DDIC).
  Data Type Issues: If you are using a data type that has a specific length and you attempt to assign a longer string or value to it, this error will occur.
  Incorrect Data Mapping: When mapping data from one structure to another, if the target field has a shorter length than the source field, this error can be triggered.
  
  Solution:
  
  Check Field Lengths: Review the data dictionary (transaction SE11) to check the defined lengths of the fields involved. Ensure that the data being assigned does not exceed these lengths.
  Adjust Data: If the data being assigned is too long, you may need to truncate it or modify it to fit within the defined length.
  Modify Data Dictionary: If appropriate, consider increasing the length of the field in the data dictionary to accommodate the data being processed. This should be done with caution and typically requires proper change management procedures.
  Data Mapping Review: If the error occurs during data mapping, ensure that the source and target fields are compatible in terms of length and data type.
  
  Related Information:
  
  Transaction Codes: Use SE11 to view and modify data dictionary objects, and SE37 to check function modules that may be involved in the data processing.
  Debugging: If you encounter this error during program execution, use the debugger to trace the values being assigned to the fields and identify where the mismatch occurs.
  Documentation: Refer to SAP documentation or community forums for specific examples and additional troubleshooting steps related to this error message.
  
  By following these steps, you should be able to identify the cause of the DT228 error and implement a suitable solution.