How To Fix /ISDFPS/MM511 - An entry already exists with the same key

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/MM -

• Message number: 511

• Message text: An entry already exists with the same key

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/MM511 - An entry already exists with the same key ?

  The SAP error message /ISDFPS/MM511 An entry already exists with the same key typically occurs in the context of the SAP Integrated Business Planning (IBP) or SAP S/4HANA systems when there is an attempt to create or update a record that already exists in the database with the same key. This can happen in various scenarios, such as during data uploads, master data maintenance, or transactional processing.
  
  Cause:
  
  Duplicate Key Entry: The most common cause of this error is that the system is trying to insert a record with a key (like a unique identifier) that already exists in the database.
  Data Upload Issues: If you are uploading data (e.g., via a data import or migration process), the source data may contain duplicates.
  
  Configuration Issues: There may be issues with the configuration of the data model or the way keys are defined in the system.
  Concurrency Issues: If multiple users or processes are trying to