How To Fix SB637 - Adjacency comparison not possible for first version

SAP Error Message - Details

• Message type: E = Error

• Message class: SB - Version Management Messages

• Message number: 637

• Message text: Adjacency comparison not possible for first version

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SB637 - Adjacency comparison not possible for first version ?

  The SAP error message SB637, which states "Adjacency comparison not possible for first version," typically occurs in the context of SAP's transport management system or when dealing with version management in SAP applications. This error indicates that the system is unable to perform an adjacency comparison because it is trying to compare the first version of an object, which does not have a previous version to compare against.
  Cause:
  
  First Version: The error arises when the system attempts to compare the first version of an object (like a transport request or a configuration object) with a non-existent previous version.
  Version Management: This can happen in scenarios where version management is enabled, and the system expects at least two versions to perform a comparison.
  Transport Requests: If you are trying to transport an object that has not been modified or has only one version, the system cannot find a previous version to compare it against.
  
  Solution:
  
  Check Object Versions: Ensure that the object you are trying to compare has more than one version. If it is the first version, there will be no previous version to compare against.
  Modify the Object: If applicable, make a change to the object to create a new version. This will allow the system to perform the adjacency comparison.
  Review Transport Requests: If this error occurs during a transport process, check the transport request to ensure that it contains the necessary objects and versions.
  Consult Documentation: Refer to SAP documentation or notes related to version management and transport requests for specific guidance on handling this error.
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if this error is affecting critical business processes.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Version Management: Familiarize yourself with how version management works in SAP, including how to create, modify, and manage object versions.
  Transport Management System (TMS): Understanding the TMS and how it handles transport requests and object versions can help in troubleshooting related issues.
  
  By following these steps, you should be able to resolve the SB637 error and understand the context in which it occurs.