How To Fix TRUST018 - Target system release is older than 4.6C

SAP Error Message - Details

• Message type: E = Error

• Message class: TRUST - Certificate Management

• Message number: 018

• Message text: Target system release is older than 4.6C

What causes this issue?

Certificates can only be requested from SAP systems with a release
status of SAP R/3 4.6C or higher.

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 TRUST018 - Target system release is older than 4.6C ?

  The SAP error message TRUST018 indicates that the target system you are trying to connect to or perform a trust relationship with is running a version that is older than 4.6C. This can occur in scenarios involving system connections, such as when setting up RFC (Remote Function Call) connections, or when trying to establish a trust relationship between systems.
  Cause:
  The primary cause of this error is that the target SAP system is running a version that is not compatible with the features or protocols being used in the source system. Specifically, the error indicates that the target system is below the minimum required version (4.6C) for certain functionalities, such as Secure Network Communications (SNC) or Single Sign-On (SSO).
  Solution:
  To resolve the TRUST018 error, you can consider the following solutions:
  
  
  Upgrade the Target System: If possible, upgrade the target SAP system to at least version 4.6C or higher. This is the most straightforward solution if you have control over the target system.
  
  
  Check Compatibility: Ensure that the features you are trying to use (like SNC or SSO) are supported in the target system. If the target system cannot be upgraded, you may need to adjust your configuration to use features that are compatible with the older version.
  
  
  Modify Connection Settings: If upgrading is not an option, you may need to modify the connection settings or the way you are trying to establish the trust relationship. This could involve using different authentication methods that are supported by the older system.
  
  
  Consult SAP Notes: Check for any relevant SAP Notes that might provide additional guidance or workarounds for this specific error. SAP Notes often contain important information about compatibility issues and recommended practices.
  
  
  Contact SAP Support: If you are unable to resolve the issue through the above steps, consider reaching out to SAP Support for assistance. They can provide specific guidance based on your system landscape and configuration.
  
  
  Related Information:
  
  SAP Versioning: Understanding the versioning of SAP systems is crucial, as many features and functionalities are tied to specific releases.
  RFC Connections: Familiarize yourself with how RFC connections work in SAP, including the requirements for establishing trust relationships.
  SNC and SSO: If you are using Secure Network Communications or Single Sign-On, ensure that both systems are configured correctly and that the necessary components are in place.
  
  By following these steps, you should be able to address the TRUST018 error and establish the necessary connections between your SAP systems.