Error
Error Code:
5427
SAP S/4HANA Error 5427: Text File Access Error
Description
Error 5427, 'ERR_TEXT_FCA_FILE_OPEN', indicates that SAP S/4HANA encountered a problem while attempting to open a required text file. This typically occurs during processes that involve reading or writing data to external files or specific application configuration files.
Error Message
ERR_TEXT_FCA_FILE_OPEN
Known Causes
4 known causesInsufficient File Permissions
The SAP S/4HANA system or the user account lacks the necessary read or write permissions for the target file or its directory.
Missing or Incorrect File Path
The specified text file does not exist at the expected location, or the file path configured in SAP S/4HANA is incorrect.
File Corruption or Lock
The text file is corrupted, unreadable, or currently locked by another process, preventing SAP S/4HANA from accessing it.
Network or Share Access Issue
If the file resides on a network share, a temporary network outage or incorrect share permissions may prevent access.
Solutions
3 solutions available1. Verify File System Permissions for SAP System User medium
Ensures the SAP system user has read/write permissions on the directory where the text file is located.
1
Identify the SAP system user (e.g., `<sid>adm`). This is typically the user that the SAP application servers run under.
2
Identify the exact path to the text file that is causing the error. This information is usually present in the SAP system logs (SM21, ST22, or trace files).
3
Log in to the operating system of the relevant SAP application server as a user with administrative privileges (e.g., root or administrator).
4
Navigate to the directory containing the text file. Use the `cd` command in Linux/Unix or `cd` in PowerShell/CMD.
cd /path/to/your/textfile/directory5
Check the current permissions of the directory and the file using `ls -l` command.
ls -l6
Grant read and write permissions to the SAP system user for the directory and the file. Replace `<sid>adm` with your actual SAP system user and `/path/to/your/textfile/directory` with the correct path.
sudo chown -R <sid>adm:<sid>adm /path/to/your/textfile/directory
sudo chmod -R u+rwX /path/to/your/textfile/directory7
If the file is being written by a SAP process, ensure that the process has the necessary write permissions. The `chmod -R u+rwX` command above should cover this for the owner.
8
Restart the relevant SAP application server instance or the specific service that is failing to pick up the permission changes.
2. Check Network File System (NFS) Mount Options medium
Ensures that NFS mounts are correctly configured and accessible, especially for shared file locations.
1
Determine if the text file is located on a Network File System (NFS) share. This is common in distributed SAP environments.
2
On the SAP application server, check the NFS mount points and their options. Use the `mount` command in Linux/Unix.
mount3
Look for the NFS mount point corresponding to the directory of the text file. Verify that the mount options include `rw` (read-write) and `suid` or `nosuid` as per your security policy.
4
If the mount is read-only (`ro`), or if there are other restrictive options, you may need to remount the NFS share with appropriate permissions. This usually involves editing `/etc/fstab` and running `mount -o remount,rw /path/to/mountpoint` or restarting the NFS client service.
sudo mount -o remount,rw /path/to/mountpoint5
Ensure the NFS server is also configured to allow read/write access for the client SAP application server. Consult your storage administrator for NFS server-side configurations.
6
After making changes, test the file access again. A server restart might be necessary if the changes are not immediately effective.
3. Review SAP Gateway Security Settings advanced
Verifies that SAP Gateway security configurations do not restrict file access for remote RFC calls.
1
Understand that Error 5427 can occur if a remote function call (RFC) is trying to access a file and the SAP Gateway security settings are too restrictive.
2
Access transaction `SMGW` (Gateway Monitor) on the SAP system.
3
Navigate to `Goto -> Expert Functions -> External Security`. This will display the `secinfo` and `reginfo` files.
4
Examine the `secinfo` file. This file controls which external programs can start on the gateway. If the file access is initiated by an external program, ensure it has the necessary permissions defined here.
5
Examine the `reginfo` file. This file controls which registered programs are allowed to be started by the gateway. This is less likely to be the direct cause of `ERR_TEXT_FCA_FILE_OPEN` but is part of the overall gateway security context.
6
If the file access is part of an RFC call from another SAP system or an external application, ensure that the `secinfo` file on the gateway server of the target system allows the specific program or user to perform file operations. You might need to add entries like `P TP=* USER=* USER-HOST=* HOST=*` (for broader access, use with caution) or more specific entries.
P TP=<program_name> USER=<user_name> USER-HOST=<user_host> HOST=<host>7
To apply changes to `secinfo` or `reginfo`, you typically need to restart the SAP Gateway or reload the configuration from `SMGW` (Goto -> Expert Functions -> External Security -> Reread).
8
After modifying security settings, thoroughly test the functionality that triggered the error.