How To Fix FDT_CORE276 - Data cannot be moved into table due to duplicate keys

FDT_CORE276 - Overview

• Message type: E = Error

• Message class: FDT_CORE - Formula & Derivation Tool: Core

• Message number: 276

• Message text: Data cannot be moved into table due to duplicate keys

What causes this issue?

You try to move table data from a BRFplus table into an external ABAP
table that has a unique key constraint.
The data that shall be moved into the external table violates the unique
key constraints: At least two lines of the table data have the same
unique key.

System Response

The system triggers a CX_FDT_INPUT exception.

How to fix this error?

Ensure that the data to be moved into the external table does not
violate the unique key constraints.

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 FDT_CORE276 - Data cannot be moved into table due to duplicate keys ?

  The SAP error message FDT_CORE276 indicates that there is an attempt to insert or move data into a table, but the operation fails due to the presence of duplicate keys. This typically occurs in scenarios where the data being processed violates the unique constraints defined for the table.
  
  Cause:
  
  Duplicate Data: The most common cause is that the data being inserted or moved contains duplicate entries for fields that are defined as unique keys in the target table.
  Incorrect Data Mapping: If the data mapping or transformation logic is not correctly set up, it may lead to duplicates being generated during the data processing.
  Data Integrity Issues: There may be existing data in the target table that conflicts with the incoming data, leading to key violations.
  Concurrency Issues: If multiple processes are trying to insert data simultaneously, it may lead to race conditions that result in duplicates.
  
  
  Solution:
  
  Identify Duplicates: Check the data being processed to identify