Error
Error Code:
1797
SAP S/4HANA Error 1797: Insufficient Shared Memory Permissions
Description
Error 1797, 'ERR_SHM_CREATE_NO_ACCESS', indicates that the SAP S/4HANA system or a specific user/process lacks the necessary permissions to create or access a shared memory segment. This critical error often prevents core system functions, transactions, or background jobs from executing successfully, as shared memory is vital for inter-process communication and data caching within SAP.
Error Message
ERR_SHM_CREATE_NO_ACCESS
Known Causes
3 known causesOperating System User Permissions
The operating system user account under which the SAP S/4HANA instance or specific services are running does not have the required permissions to manage shared memory segments.
SAP User Authorizations
The SAP user attempting to perform an action that requires access to shared memory segments lacks the necessary SAP authorizations within their assigned roles or profiles.
OS Shared Memory Configuration
The operating system's kernel parameters related to shared memory (e.g., SHMMAX, SHMMNI, SHMALL) are incorrectly configured, too restrictive, or do not meet SAP's requirements.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service