How To Fix DDLS339 - & was selected as reference field; type must be UNIT/CUKY, not &

DDLS339 - Overview

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 339

• Message text: & was selected as reference field; type must be UNIT/CUKY, not &

What causes this issue?

The annotation @Semantics.currencyCode or @Semantics.unitOfMeasure was
used for elements that do not have the correct data type.
The annotation @Semantics.currencyCode is supported for elements with
the data type CUKY only.
The annotation @Semantics.unitOfMeasure is supported for elements with
the data type UNIT only.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

DDLS339 - Details

• The SAP error message DDLS339 indicates that there is an issue with the data type of a reference field in a Data Dictionary object, such as a table or a structure. Specifically, the error message states that the field was selected as a reference field, but its data type does not match the expected type, which should be either UNIT (for unit of measure) or CUKY (for currency key). Instead, it is of a different type, denoted by &.
  
  Cause:
  The error typically arises in the following scenarios:
  
  Incorrect Data Type: The field you are trying to use as a reference field is not of the correct type (UNIT or CUKY). This can happen if the field was defined with a different data type, such as CHAR, INT, etc.
  Field Definition Issues: There may be inconsistencies in the field definitions in the Data Dictionary, leading to this error when trying to create or modify