How To Fix SEEF_HOOK021 - End enhancement upgrade phase

SAP Error Message - Details

• Message type: E = Error

• Message class: SEEF_HOOK - Messages for Hooks

• Message number: 021

• Message text: End enhancement upgrade phase

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 SEEF_HOOK021 - End enhancement upgrade phase ?

  The SAP error message SEEF_HOOK021 typically occurs during the upgrade process of an SAP system, particularly when enhancements or modifications are involved. This error indicates that there is an issue with the enhancement implementation that is preventing the upgrade from proceeding.
  
  Cause:
  
  Incompatible Enhancements: The error may arise if there are custom enhancements or modifications that are not compatible with the new version of SAP you are trying to upgrade to.
  Missing or Incorrect Implementation: If the enhancement implementation is missing or incorrectly configured, it can lead to this error.
  Transport Issues: Sometimes, transport requests that contain enhancements may not have been properly imported or may be in an inconsistent state.
  Code Conflicts: Conflicts between standard SAP code and custom code can also trigger this error.
  
  
  Solution:
  
  Check Enhancement Implementations: Review the enhancements that are implemented in your system. Ensure that they are compatible with the target version of SAP.
  Adjust or Remove Enhancements: If certain enhancements are