How To Fix REORRS034 - External ID &1 is not unique

REORRS034 - Overview

• Message type: E = Error

• Message class: REORRS - Messages for Reservation

• Message number: 034

• Message text: External ID &1 is not unique

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 REORRS034 - External ID &1 is not unique ?

  The SAP error message REORRS034 indicates that there is a problem with the uniqueness of an external ID in the system. This error typically occurs in the context of the SAP Real Estate Management (RE) module, where external IDs are used to identify objects such as properties, contracts, or other entities.
  
  Cause:
  The error message "External ID &1 is not unique" suggests that the external ID you are trying to use is already assigned to another object in the system. This can happen due to:
  
  Duplicate Entries: The external ID you are trying to create or update already exists in the database for another object.
  Data Migration Issues: If data has been migrated from another system, there may be duplicates that were not properly handled.
  Incorrect Configuration: The system may not be configured to handle external IDs correctly, leading to conflicts.
  
  
  Solution:
  To resolve the REORRS034 error, you can take the following steps:
  
  
  Check for Duplicates:
  
  Use transaction codes