How To Fix /ISDFPS/LM_PM_ADDON158 - External ID & is already being used in other flights

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/LM_PM_ADDON -

• Message number: 158

• Message text: External ID & is already being used in other flights

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/LM_PM_ADDON158 - External ID & is already being used in other flights ?

  The SAP error message /ISDFPS/LM_PM_ADDON158 External ID & is already being used in other flights typically occurs in the context of flight management or logistics within the SAP system, particularly when dealing with flight planning or scheduling modules. This error indicates that the external ID you are trying to use for a flight is already associated with another flight in the system, which prevents you from using it again for a different flight.
  
  Cause:
  
  Duplicate External ID: The external ID you are trying to assign to a flight is already in use by another flight. This could happen if the ID is not unique or if there was an error in data entry.
  Data Integrity Issues: There may be issues with data integrity in the system, where the same ID is being referenced incorrectly.
  System Configuration: The system may be configured to enforce unique external IDs for flights, which is a common practice to