How To Fix 5AT205 - No type conversion is possible for the structured field &1

SAP Error Message - Details

• Message type: E = Error

• Message class: 5AT - General Attribute Maintenance

• Message number: 205

• Message text: No type conversion is possible for the structured field &1

What causes this issue?

You have set a structured field as a data dictionary reference.
However, from the point of view of generic attributes this makes no
sense, as the structure cannot be used internally.

System Response

Internally, the system uses the reference to the field HRT1222-LOW. The
attribute is therefore treated as if it were untyped. No input or
output conversion is possible.

How to fix this error?

To define the attribute correctly, use a field from a flat structure.
You can only define invisible attributes in this way.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 5AT205 - No type conversion is possible for the structured field &1 ?

  The SAP error message 5AT205 indicates that there is an issue with type conversion for a structured field in your SAP system. This typically occurs when there is an attempt to assign or convert data from one type to another, but the system cannot perform the conversion due to incompatible data structures.
  Cause:
  
  Incompatible Data Types: The structured field you are trying to use may have a different data type than what is expected. For example, if you are trying to assign a value from a structure that does not match the target structure's definition.
  Field Length Issues: The length of the data being assigned may exceed the defined length of the target field.
  Missing or Incorrect Mapping: If the fields in the source and target structures are not correctly mapped or if there are missing fields, the conversion will fail.
  Data Structure Changes: If there have been recent changes to the data structures (like adding or removing fields), it may lead to this error if the code has not been updated accordingly.
  
  Solution:
  
  Check Data Types: Verify that the data types of the source and target fields are compatible. Ensure that the structure definitions match.
  Field Length Verification: Ensure that the length of the data being assigned does not exceed the defined length of the target field.
  Review Mapping: Check the mapping of fields between the source and target structures. Make sure all necessary fields are included and correctly defined.
  Debugging: Use the debugger to trace the point where the error occurs. This can help identify the specific field or data causing the issue.
  Code Review: Review the ABAP code where the conversion is taking place. Ensure that the logic for assigning values is correct and that all necessary checks are in place.
  Consult Documentation: If the error persists, consult SAP documentation or support for any known issues related to the specific version of SAP you are using.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  ABAP Documentation: Review ABAP documentation for guidelines on data type conversions and structured fields.
  Community Forums: Consider searching or posting on SAP community forums for additional insights from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify and resolve the cause of the 5AT205 error in your SAP system.