How To Fix CM_EXPERT351 - Empty external ID for the fact &1 in the mapping table for facts

CM_EXPERT351 - Overview

• Message type: E = Error

• Message class: CM_EXPERT - Messages for Expert

• Message number: 351

• Message text: Empty external ID for the fact &1 in the mapping table for facts

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 CM_EXPERT351 - Empty external ID for the fact &1 in the mapping table for facts ?

  The SAP error message CM_EXPERT351 indicates that there is an issue with the mapping of facts in the context of SAP's data management or reporting tools, particularly in the context of the SAP Business Warehouse (BW) or SAP Analytics solutions. The error specifically points out that there is an empty external ID for a fact in the mapping table, which is essential for the system to correctly identify and process the data.
  
  Cause:
  
  Missing External ID: The most common cause of this error is that the external ID for a specific fact is not defined or is missing in the mapping table. This can happen due to data import issues, incorrect configuration, or manual errors during data entry.
  Data Model Changes: If there have been recent changes to the data model or the mapping configuration, it may lead to inconsistencies where some facts do not have corresponding external IDs.
  Inconsistent Data: If the data