Error
Error Code:
597
SAP S/4HANA Error 597: API Session Context Issue
Description
This error indicates a critical problem with the session context required for an API call within SAP S/4HANA. It typically occurs when an API request fails to provide valid session information or when the existing session's state becomes inconsistent or expired, preventing the successful execution of the requested operation.
Error Message
ERR_API_SESSION_CONTEXT_ERROR
Known Causes
4 known causesExpired or Invalid Session Token
The API request was made with a session token that has either expired or is not recognized as valid by the SAP S/4HANA system.
Inconsistent Session State
The server's record of the session state diverged from the client's, possibly due to server-side issues, restarts, or unexpected session termination.
Missing Required Context Data
The API call did not include all the necessary session-specific parameters or context information required for the system to process the request.
Network or Connectivity Interruption
Brief network instability or loss of connectivity during the session's lifecycle could lead to a corrupted or lost session context.
Solutions
4 solutions available1. Restart Application Server Instance easy
A common cause for API session context errors is a transient issue with the application server instance handling the API call. A restart can resolve this.
1
Log in to the SAP S/4HANA system using an administrator user (e.g., SAP*, DDIC).
2
Navigate to transaction SMICM (Internet Communication Manager).
3
Go to Administration -> Instance -> Restart.
4
Confirm the restart when prompted.
5
Monitor SMICM to ensure the instance restarts successfully.
6
Attempt the API call again after the instance is fully operational.
2. Verify and Reset User Session easy
The error might stem from an invalid or corrupted user session associated with the API caller. Resetting the user's session can clear this.
1
Identify the SAP user account making the API call. This can often be found in the system logs or by examining the API request details.
2
Log in to the SAP S/4HANA system using an administrator user.
3
Navigate to transaction SM04 (Logged-on Users).
4
Locate the user in question. If multiple sessions exist for the user, identify the relevant one (e.g., based on terminal ID or activity).
5
Select the user's session and click the 'Logout' button.
6
Alternatively, for a more forceful reset, you can use transaction SM21 (System Log) to check for specific error messages related to the user's session and then potentially use SM04 to terminate the problematic session.
7
Instruct the user to log in again and re-attempt the API call.
3. Analyze System Logs for Deeper Issues medium
A persistent ERR_API_SESSION_CONTEXT_ERROR might indicate a more fundamental issue within the SAP Gateway or the underlying application logic. Analyzing system logs is crucial for diagnosis.
1
Access the SAP Gateway error log. This is typically found in transaction /IWFND/ERROR_LOG.
2
Filter the logs by the time the error occurred and the affected OData service (if known). Look for entries related to ERR_API_SESSION_CONTEXT_ERROR.
3
Examine the 'Technical Details' or 'Error Details' for more specific information, such as the underlying ABAP dump (ST22) or database errors.
4
Check the SAP System Log (SM21) for any related system-level errors that might be contributing to the session issue.
5
If an ABAP dump is indicated, navigate to transaction ST22 to analyze the dump. Look for exceptions or error messages that provide clues about the session context problem.
6
Based on the log analysis, you might need to investigate issues with the OData service implementation, RFC destinations, or security configurations.
4. Review and Reconfigure RFC Destinations medium
API calls often rely on RFC destinations. An issue with the configuration or availability of these destinations can lead to session context errors.
1
Identify the RFC destinations used by the API or the application that is making the API call. This information can often be found in the OData service configuration (transaction /IWFND/MAINT_SERVICE) or in the application's configuration settings.
2
Navigate to transaction SM59 (RFC Destinations).
3
For each relevant RFC destination, perform a 'Connection Test' and an 'Authorization Test'.
4
If any tests fail, meticulously review the destination's configuration, including the target host, program ID, gateway options, and logon credentials.
5
Ensure that the target system is accessible and that the gateway services are running on both the source and target systems.
6
If the RFC destination involves specific user credentials, verify that these credentials are valid and have the necessary authorizations in the target system.
7
After making any necessary corrections, re-test the RFC destination and then attempt the API call again.