How To Fix DT145 - Key field & was inserted into existing key

DT145 - Overview

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 145

• Message text: Key field & was inserted into existing key

What causes this issue?

You have inserted field &1 in the existing key. This is not allowed in
support package systems.

System Response

The table will not be activated.

How to fix this error?

Remove the change.

Error message extract from SAP system. Copyright SAP SE.

DT145 - Details

• The SAP error message DT145 ("Key field & was inserted into existing key") typically occurs in the context of data management, particularly when dealing with database tables or data records in SAP. This error indicates that there is an issue with the uniqueness of key fields in a database table or data structure.
  
  Cause:
  
  Duplicate Key Insertion: The error arises when an attempt is made to insert a record with a key field value that already exists in the database. Key fields are meant to be unique identifiers for records, and inserting a duplicate violates this constraint.
  Data Migration or Upload Issues: If you are migrating data or uploading records into SAP, this error can occur if the source data contains duplicates for key fields.
  Incorrect Configuration: Sometimes, the configuration of the data model or the way the data is being processed can lead to attempts to insert duplicate keys.
  
  
  Solution:
  
  
  Check for Duplicates: Before inserting