How To Fix HL602 - EHP key &1 cannot be used

SAP Error Message - Details

• Message type: E = Error

• Message class: HL - IWB: Help Links

• Message number: 602

• Message text: EHP key &1 cannot be used

What causes this issue?

You cannot use the EHP key &V1& to assign the selected structure. This
may be caused by:
You have selected the wrong EHP key.
The entry in value table &V2& is incorrect.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

Check whether you have selected the correct EHP key.
If the EHP key is the right one, contact your power user for Knowledge
Warehouse (KW).

How to fix this error?

Check whether you have selected the correct EHP key.
If the EHP key is the right one, contact your power user for Knowledge
Warehouse (KW).

Procedure for System Administrators

Check the entry in the value table &V2& relevant for the EHP key &V1&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message HL602 - EHP key &1 cannot be used ?

  The SAP error message HL602 indicates that the Enhancement Package (EHP) key specified cannot be used. This error typically arises during the installation or upgrade of an SAP system when the system is unable to recognize or validate the specified EHP key.
  Causes:
  
  Invalid EHP Key: The EHP key provided may be incorrect or not valid for the current system version.
  Missing Authorizations: The user executing the transaction may not have the necessary authorizations to access or use the specified EHP key.
  System Configuration Issues: There may be configuration issues in the SAP system that prevent the recognition of the EHP key.
  Compatibility Issues: The EHP key may not be compatible with the current version of the SAP system or the installed components.
  Incorrect Installation Procedure: The installation or upgrade procedure may not have been followed correctly, leading to this error.
  
  Solutions:
  
  Verify EHP Key: Check the EHP key for correctness. Ensure that it is the right key for the version of SAP you are working with.
  Check Authorizations: Ensure that the user has the necessary authorizations to perform the operation related to the EHP key.
  Review System Configuration: Check the system configuration settings to ensure that they are set up correctly for the EHP installation.
  Consult SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that may address this specific error. SAP Notes often provide patches or workarounds for known issues.
  Re-run Installation/Upgrade: If the installation or upgrade was interrupted or not completed correctly, consider re-running the process following the official SAP guidelines.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. They can provide more detailed insights based on your specific system configuration and logs.
  
  Related Information:
  
  SAP Notes: Always check for the latest SAP Notes related to EHP installations and upgrades, as they may contain important information about known issues and fixes.
  Documentation: Refer to the official SAP documentation for the specific EHP you are trying to install or upgrade. This documentation often includes prerequisites and compatibility information.
  System Logs: Review system logs (such as the Developer Traces or the Installation Logs) for additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to diagnose and resolve the HL602 error in your SAP system.