How To Fix TG842 - Add-On update &, version & does not match (old version too high)

TG842 - Overview

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 842

• Message text: Add-On update &, version & does not match (old version too high)

What causes this issue?

As of Release 3.0, add-on products are imported using a standard
procedure and recorded in the system. On the inserted additional CD for
updating the add-on product, there is an update package that cannot be
used because the current version of the add-on is not compatible with
this package. This is not generally an error, since there can be more
than one update package on a CD. The suitable package(s) is then
selected from these packages.

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?

Error message extract from SAP system. Copyright SAP SE.

TG842 - Details

• The SAP error message TG842 indicates that there is a version mismatch during an add-on update process. Specifically, it suggests that the version of the add-on you are trying to install or update is lower than the version currently installed in the system. This situation can occur when an attempt is made to downgrade an add-on or when the system is not aligned with the expected versioning.
  
  Cause:
  
  Version Mismatch: The add-on version you are trying to install is lower than the version already installed in the SAP system.
  Incorrect Installation Package: The installation package may not be the correct one for the current system configuration.
  Manual Changes: Manual changes to the add-on version in the system might have led to inconsistencies.
  
  
  Solution:
  
  
  Check Installed Version: Verify the currently installed version of the add-on in the SAP system. You can do this by navigating to the relevant transaction (e.g., SFW5 for business function sets or SPAM