How To Fix DMC_RT_MSG146 - Duplicate key error occurred - find duplicates in spool list of batch job

DMC_RT_MSG146 - Overview

• Message type: E = Error

• Message class: DMC_RT_MSG - DMC: Runtime Object Messages

• Message number: 146

• Message text: Duplicate key error occurred - find duplicates in spool list of batch job

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_RT_MSG146 - Duplicate key error occurred - find duplicates in spool list of batch job ?

  The SAP error message DMC_RT_MSG146 indicates that a duplicate key error has occurred during the execution of a batch job. This typically means that the system has encountered a situation where it is trying to insert or update a record in a database table, but a record with the same key already exists. This can happen in various scenarios, such as data processing, data migration, or during the execution of specific transactions.
  Causes:
  
  Duplicate Data: The most common cause is that the data being processed contains duplicates that violate the unique constraints of the database table.
  Incorrect Logic in Batch Job: The logic implemented in the batch job may not be correctly handling unique keys, leading to attempts to insert duplicate records.
  Concurrency Issues: If multiple processes are trying to insert or update the same record simultaneously, it can lead to a duplicate key error.
  Data Migration Issues: During data migration or data uploads, if