How To Fix EL476 - Dev. &1, reg. &2: Installation must come after removal

SAP Error Message - Details

• Message type: E = Error

• Message class: EL - IS-U meter reading data processing

• Message number: 476

• Message text: Dev. &1, reg. &2: Installation must come after removal

What causes this issue?

Meter reading results for device replacement must be entered at
intervals of one second.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EL476 - Dev. &1, reg. &2: Installation must come after removal ?

  The SAP error message EL476, which states "Dev. &1, reg. &2: Installation must come after removal," typically occurs during the installation or upgrade of a software component or add-on in the SAP system. This error indicates that the system is trying to install a component that has not been properly removed or uninstalled first.
  Cause:
  
  Incomplete Uninstallation: The component or add-on you are trying to install may not have been completely removed from the system. This can happen if the uninstallation process was interrupted or if there are remnants of the previous installation.
  Incorrect Installation Sequence: The installation process may be attempting to install a component that is still registered in the system, which violates the installation sequence rules.
  Dependency Issues: There may be dependencies on other components that have not been resolved, leading to conflicts during the installation process.
  
  Solution:
  
  Check Installation Status: Verify the status of the component you are trying to install. Use transaction codes like SE80 or SPAM to check if the component is still registered in the system.
  Remove the Component: If the component is still present, attempt to remove it using the appropriate transaction (e.g., SPAM or SAINT for add-ons). Ensure that the removal process completes successfully.
  Clear Cache: Sometimes, clearing the cache can help resolve issues related to remnants of previous installations. You can do this by using transaction SICF to clear the service cache.
  Check for Dependencies: Ensure that all dependencies for the component you are trying to install are met. If there are other components that need to be removed or updated, do so before proceeding with the installation.
  Review Logs: Check the installation logs for any additional error messages or warnings that may provide more context about the issue. This can help identify specific problems that need to be addressed.
  Reboot the System: In some cases, a system reboot may help clear any locks or processes that are preventing the installation from proceeding.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific component you are trying to install. SAP Notes often contain important information about known issues and their resolutions.
  Documentation: Review the installation documentation for the component to ensure that you are following the correct procedures and prerequisites.
  Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error and the steps you have already taken.
  
  By following these steps, you should be able to resolve the EL476 error and successfully install the desired component in your SAP system.