How To Fix RSDMD280 - UUID charact. &1: Duplicate external key &2 of record &3 in package

RSDMD280 - Overview

• Message type: E = Error

• Message class: RSDMD - Messages for master data

• Message number: 280

• Message text: UUID charact. &1: Duplicate external key &2 of record &3 in package

What causes this issue?

The external key &V2& in record &V3& of the UUID characteristic &V1& is
already assigned to record &V4& in the current data package.

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?

Assign a different external key value.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

RSDMD280 - Details

• The SAP error message RSDMD280 indicates that there is a duplicate external key in a data package when working with data models in SAP BW (Business Warehouse). This error typically occurs during the data loading process when the system encounters multiple records with the same external key, which is not allowed.
  
  Cause:
  
  Duplicate External Keys: The primary cause of this error is that the data being loaded contains multiple records with the same external key. In SAP BW, each record must have a unique identifier to ensure data integrity.
  Data Source Issues: The source system might be sending duplicate records, or there might be an issue with the transformation logic that is not handling duplicates correctly.
  Incorrect Data Preparation: If the data has not been properly cleaned or deduplicated before loading into SAP BW, this can lead to duplicates.
  
  
  Solution:
  
  Identify Duplicates: Check the source data for duplicates. You can do this by querying the data