How To Fix UAS031 - Field &1 is already used in type &2

SAP Error Message - Details

• Message type: E = Error

• Message class: UAS -

• Message number: 031

• Message text: Field &1 is already used in type &2

What causes this issue?

The posting level cannot contain any fields that are also used in
attribute groups, link types, or a model version.

System Response

The desired column cannot be added because it is already contained in
type &v2&.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UAS031 - Field &1 is already used in type &2 ?

  The SAP error message UAS031 indicates that there is a conflict in the usage of a field within a data structure or type. Specifically, it means that the field specified (denoted as &1) is already being used in the type specified (denoted as &2). This typically occurs in the context of ABAP programming or when defining data structures in the Data Dictionary.
  Cause:
  
  Duplicate Field Definition: The field you are trying to define or use is already defined in the same structure or type.
  Incorrect Type Usage: You may be trying to use a field from a type that has already been defined elsewhere in the same context.
  Inconsistent Data Model: There may be inconsistencies in the data model where the same field is being referenced multiple times in a way that is not allowed.
  
  Solution:
  
  Check Field Definitions: Review the data structure or type definition to ensure that the field is not already defined. If it is, you may need to remove the duplicate definition or rename the field.
  Modify Data Structure: If you need to use the same field in multiple places, consider creating a new field or using a reference to the existing field instead of redefining it.
  Use Unique Names: Ensure that all field names within a structure or type are unique to avoid conflicts.
  Review Type Usage: If you are using a type that has already been defined, ensure that you are not trying to redefine fields that are already part of that type.
  
  Related Information:
  
  ABAP Dictionary: Familiarize yourself with the ABAP Dictionary, as it is where data types and structures are defined.
  Data Types: Understand the different data types in SAP and how they can be reused or referenced.
  SAP Documentation: Refer to SAP's official documentation for more details on data structure definitions and best practices.
  Debugging: If you are unsure where the conflict is occurring, use debugging tools in the ABAP Workbench to trace the definitions and usages of the fields.
  
  By following these steps, you should be able to resolve the UAS031 error and ensure that your data structures are correctly defined without conflicts.