Error
Error Code:
1800
SAP S/4HANA Error 1800: Shared Memory Access Denied
Description
This error indicates that an SAP S/4HANA process or user attempted to perform an operation (such as dropping or releasing) on a shared memory segment but lacked the necessary read permissions for that specific shared memory ID (shmid). It typically occurs during system startup, shutdown, or specific application operations that manage shared memory resources.
Error Message
ERR_SHM_DROP_NO_ACCESS
Known Causes
3 known causesInsufficient Operating System User Permissions
The OS user under which the SAP S/4HANA process is running does not have adequate read permissions for the specific shared memory segment (shmid) it is trying to access or modify.
Incorrect SAP System Profile Parameters
Shared memory segment configurations within SAP S/4HANA system profiles might be incorrectly defined or inconsistent, leading to access denial issues for certain operations.
Residual or Corrupted Shared Memory Segments
Previously created shared memory segments might not have been properly cleaned up, or they could be corrupted, causing subsequent access attempts to fail due to ownership or permission conflicts.
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