How To Fix R8658 - Key change on DataSource &1

R8658 - Overview

• Message type: E = Error

• Message class: R8 - Messages from the meta data generation

• Message number: 658

• Message text: Key change on DataSource &1

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 R8658 - Key change on DataSource &1 ?

  The SAP error message R8658, which states "Key change on DataSource &1," typically occurs when there is a change in the key fields of a DataSource in SAP BW (Business Warehouse). This can happen when the underlying data structure of the source system changes, such as when fields are added, removed, or modified in a way that affects the primary key.
  
  Cause:
  
  Change in Source System: The most common cause is a modification in the source system (like an SAP ERP system) where the DataSource is defined. This could involve changes to the database table structure, such as adding or removing fields that are part of the key.
  DataSource Configuration: If the DataSource configuration in BW is not aligned with the changes made in the source system, it can lead to this error.
  Inconsistent Data: If the data in the source system does not match the expected structure in BW, it can trigger this