How To Fix 1S518 - OID is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: 1S - Messages for SSF ("Secure Store & Forward")

• Message number: 518

• Message text: OID 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 1S518 - OID is not unique ?

  The SAP error message 1S518 OID is not unique typically occurs in the context of SAP systems when there is an issue with Object Identifiers (OIDs) in the system. This error indicates that the system has encountered a situation where it expects a unique OID, but it has found duplicates.
  Cause:
  
  Duplicate OIDs: The most common cause of this error is that there are multiple entries in the database or configuration that share the same OID. This can happen due to incorrect data entry, data migration issues, or inconsistencies in the system.
  Configuration Issues: Sometimes, the error can arise from misconfigurations in the system where OIDs are not being generated or assigned correctly.
  Transport Issues: If you are transporting objects between systems (e.g., from development to production), there may be conflicts or duplicates introduced during the transport process.
  
  Solution:
  
  Identify Duplicates: Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check the relevant tables for duplicate OIDs. You may need to look into specific tables related to the objects you are working with.
  Correct Data: Once you identify the duplicates, you will need to correct the data. This may involve deleting or modifying the duplicate entries to ensure that each OID is unique.
  Check Configuration: Review the configuration settings related to the objects in question to ensure that OIDs are being generated correctly and that there are no misconfigurations.
  Transport Management: If the issue arose during a transport, check the transport logs and ensure that the objects being transported do not conflict with existing objects in the target system.
  Consult Documentation: Refer to SAP documentation or notes related to the specific module or functionality you are working with, as there may be specific guidelines or patches available.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message. You can search for the error code or related keywords in the SAP Support Portal.
  System Logs: Review system logs (transaction SLG1) for additional context or related errors that may provide more insight into the issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.