How To Fix XT156 - Error &2 when accessing system &1

SAP Error Message - Details

• Message type: E = Error

• Message class: XT - Transport Management System

• Message number: 156

• Message text: Error &2 when accessing system &1

What causes this issue?

The error &V2& occurred when accessing system &V1& with TMS.

System Response

The function terminates.

How to fix this error?

Use the <DS:REPO.RSTMSAMO>TMS Alert Viewer</>, to analyze the error.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message XT156 - Error &2 when accessing system &1 ?

  The SAP error message XT156 typically indicates a problem related to system access or configuration. The message format usually includes placeholders for specific details, such as the system name (&1) and the error code or description (&2). 
  Cause:
  The error can arise from several potential issues, including:
  
  Authorization Issues: The user may not have the necessary permissions to access the specified system.
  System Configuration: There may be a misconfiguration in the system settings or in the RFC (Remote Function Call) destination.
  Network Issues: Connectivity problems between the client and the SAP system can lead to this error.
  System Availability: The target system may be down or not reachable due to maintenance or other issues.
  
  Solution:
  To resolve the XT156 error, you can follow these steps:
  
  
  Check User Authorizations:
  
  Ensure that the user has the necessary roles and authorizations to access the specified system. This can be done by checking the user profile in transaction SU01.
  
  
  
  Verify System Configuration:
  
  Check the configuration of the RFC destination in transaction SM59. Ensure that the destination is correctly set up and that the connection parameters are accurate.
  
  
  
  Test Connectivity:
  
  Use the "Ping" option in transaction SM59 to test the connectivity to the target system. If the ping fails, investigate network issues.
  
  
  
  Check System Status:
  
  Verify if the target system is up and running. You can check the system status in transaction SM51 or by contacting your system administrator.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) for any additional error messages that might provide more context about the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP Notes or documentation related to the specific error message for any known issues or patches.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address this specific error.
  Transaction Codes: Familiarize yourself with transaction codes like SU01 (User Maintenance), SM59 (RFC Destinations), and SM21 (System Log) for troubleshooting.
  User Forums: Consider checking SAP community forums or user groups for similar issues and solutions shared by other users.
  
  If the problem persists after following these steps, it may be necessary to escalate the issue to your SAP Basis team or SAP support for further investigation.