How To Fix /IWFND/CM_UM008 - &1 exceeds the maximum length for an external ID number

/IWFND/CM_UM008 - Overview

• Message type: E = Error

• Message class: /IWFND/CM_UM -

• Message number: 008

• Message text: &1 exceeds the maximum length for an external ID number

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 /IWFND/CM_UM008 - &1 exceeds the maximum length for an external ID number ?

  The SAP error message /IWFND/CM_UM008 &1 exceeds the maximum length for an external ID number typically occurs in the context of SAP Gateway or OData services when an external ID being processed exceeds the defined maximum length for that field. This can happen during data transfer or when trying to create or update records in the system.
  
  Cause:
  
  Exceeding Length Limit: The external ID being used in the request exceeds the maximum length defined in the system. This could be due to incorrect data being sent from the client application or a misconfiguration in the data model.
  Data Model Configuration: The data model in the SAP system may have a defined maximum length for external IDs, and the incoming data does not comply with this limit.
  Incorrect Mapping: If there is a mapping issue between the source system and the SAP system, it may lead to longer IDs being sent than what is expected.
  
  
  Solution:
  
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