How To Fix S_UNIFIED_CON099 - Essential Function Module &1 must not be removed from default CA

SAP Error Message - Details

• Message type: E = Error

• Message class: S_UNIFIED_CON - Message Class for Unified Connectivity

• Message number: 099

• Message text: Essential Function Module &1 must not be removed from default CA

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 S_UNIFIED_CON099 - Essential Function Module &1 must not be removed from default CA ?

  The SAP error message S_UNIFIED_CON099 indicates that a specific function module, which is essential for the system's operation, is being attempted to be removed from the default Change Authorization (CA) settings. This can occur during various activities, such as transport requests, system upgrades, or configuration changes.
  Cause:
  The error typically arises when:
  
  A function module that is critical for the system's functionality is being modified or removed from the default Change Authorization settings.
  There may be a misconfiguration in the transport layer or authorization settings.
  The function module is being used in a way that conflicts with the system's integrity or security policies.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Function Module: Identify the function module mentioned in the error message (denoted as &1). You can do this by reviewing the transport request or the specific configuration that triggered the error.
  
  
  Review Change Authorization Settings:
  
  Go to transaction SE03 (Transport Organizer Tools) and check the change authorization settings.
  Ensure that the function module is included in the default CA settings and is not marked for removal.
  
  
  
  Consult Documentation: Review SAP documentation or notes related to the specific function module to understand its importance and any dependencies it may have.
  
  
  Transport Request: If this error occurs during a transport, ensure that the transport request is correctly configured and that all necessary objects are included.
  
  
  Authorization Check: Ensure that the user performing the action has the necessary authorizations to modify or remove function modules.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance.
  
  
  Related Information:
  
  Function Modules: These are reusable pieces of code in SAP that perform specific tasks. They are essential for various processes and should not be removed without careful consideration.
  Change Authorization: This is a mechanism in SAP that controls who can make changes to certain objects, ensuring that critical components are protected from unauthorized modifications.
  Transport Management System (TMS): This is the system used to manage the transport of objects between different SAP systems (e.g., development, quality assurance, production).
  
  By following these steps, you should be able to address the S_UNIFIED_CON099 error effectively.