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

5AT205 - Overview

• 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.

5AT205 - Details

• 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