How To Fix CM_EXPERT342 - Mapping table for facts contains no external ID for the fact

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_EXPERT - Messages for Expert

• Message number: 342

• Message text: Mapping table for facts contains no external ID for the fact

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 CM_EXPERT342 - Mapping table for facts contains no external ID for the fact ?

  The SAP error message CM_EXPERT342 indicates that there is an issue with the mapping table for facts in the context of SAP BusinessObjects or SAP BW (Business Warehouse). This error typically arises when the system is unable to find an external ID for a specific fact in the mapping table, which is essential for the proper functioning of data extraction or reporting processes.
  
  Cause:
  
  Missing External ID: The mapping table for facts does not contain an entry for the external ID that is being referenced. This could be due to data not being loaded correctly or the mapping table not being updated.
  Incorrect Configuration: The configuration settings for the data source or the mapping table may be incorrect, leading to the inability to find the necessary external ID.
  Data Model Changes: Changes in the data model or schema that have not been reflected in the mapping table can lead to this error.
  Data Source Issues: