How To Fix TN816 - System is not running in "B4H" mode (BW/4HANA conversion is not possible)

TN816 - Overview

• Message type: E = Error

• Message class: TN - Support Package Manager (SPAM) Messages

• Message number: 816

• Message text: System is not running in "B4H" mode (BW/4HANA conversion is not possible)

What causes this issue?

You have selected the software component &V1& for installation and hence
you want to start a BW/4HANA conversion. The system prerequisite check
detected, however, that the system is not running in strict B4H mode.
This means that a BW/4HANA conversion is not possible at present.

System Response

The installation of software component &V1& is not started.

How to fix this error?

Meet the prerequisites for running your system in B6H mode and enable
this mode. Note &V2& contains further information about how to proceed
here.

Error message extract from SAP system. Copyright SAP SE.

TN816 - Details

• The SAP error message TN816 indicates that the system is not running in "B4H" mode, which is necessary for performing a BW/4HANA conversion. This error typically arises when you are attempting to convert an existing SAP BW system to BW/4HANA, but the system is not configured correctly to support this conversion.
  
  Cause:
  
  Incorrect System Mode: The system is not set to "B4H" mode, which is required for BW/4HANA. This mode indicates that the system is prepared for BW/4HANA functionalities and optimizations.
  Version Compatibility: The current version of the SAP BW system may not be compatible with BW/4HANA, or it may not have been properly upgraded to a version that supports the conversion.
  Missing Configuration: Certain configurations or prerequisites may not have been completed, preventing the system from entering "B4H" mode.
  
  
  Solution:
  
  Check System Version: Ensure that your SAP BW system is on a version that is compatible with BW/4HANA. You may need to upgrade your system