Error
Error Code:
504
SAP S/4HANA Error 504: Invalid Adapter Location
Description
This error, ERR_SQL_INV_ADAPTER_LOCATION, indicates that the SAP S/4HANA system cannot find or access the specified location for a SQL adapter. This typically occurs during configuration or attempts to connect to external data sources or services, preventing successful data integration.
Error Message
ERR_SQL_INV_ADAPTER_LOCATION
Known Causes
4 known causesIncorrect Adapter Configuration
The file path or URL specified for the SQL adapter in the system configuration is either misspelled or points to a non-existent resource.
Network Connectivity Failure
The SAP S/4HANA system cannot establish a network connection to the server or location where the SQL adapter is hosted.
Adapter Not Deployed
The required SQL adapter files or components are not correctly installed, deployed, or are missing from the designated server location.
Access Permission Denied
The SAP S/4HANA system or the user account lacks the necessary read or execute permissions for the adapter's location.
Solutions
4 solutions available1. Verify SAP S/4HANA System Alias Configuration easy
Ensures the system alias used by the adapter points to the correct S/4HANA instance.
1
Access the SAP Gateway Service Consumption (Transaction /IWFND/MAINT_SERVICE) in your S/4HANA system or the Gateway hub.
2
Navigate to the 'SAP Gateway' section and select 'Manage SAP Systems' (Transaction /IWFND/RM_ADD_V2).
3
Locate the system alias that your adapter is configured to use. Verify that the 'RFC Destination' and 'Host Name' (if applicable) are correctly configured and point to the target SAP S/4HANA system.
4
If the configuration is incorrect, update the RFC Destination and/or Host Name to reflect the correct details of your S/4HANA system. Save the changes.
5
Test the connection from the adapter to the S/4HANA system to confirm the issue is resolved.
2. Check SAP Gateway Client Configuration medium
Validates the Gateway client settings and its ability to communicate with the S/4HANA backend.
1
In your SAP S/4HANA system or Gateway hub, access the SAP Gateway Client (Transaction /IWFND/GW_CLIENT).
2
Enter the request details for the service your adapter is trying to access. This might involve specifying the OData service path, HTTP method, and any necessary headers.
3
Execute the request. Observe the response for any errors related to connection, authentication, or authorization that might be preventing the adapter from establishing a valid communication channel.
4
If errors are found, investigate the underlying cause. This could involve checking RFC destinations, user authorizations for the Gateway user, or network connectivity between the Gateway and the S/4HANA backend.
5
Adjust the SAP Gateway client configurations or backend settings as needed and re-test.
3. Review Network Connectivity and Firewall Rules medium
Ensures that network pathways between the adapter's host and the SAP S/4HANA system are open.
1
Identify the hostname/IP address and the port number that the adapter uses to connect to SAP S/4HANA. This is typically port 32xx (for the instance number) for SAP GUI/RFC or port 443/80 for HTTP/HTTPS.
2
From the machine where the adapter is running, attempt to ping the S/4HANA system's hostname or IP address to verify basic network reachability.
ping <S4HANA_HOSTNAME_OR_IP>3
Use a tool like `telnet` or `nc` (netcat) to test connectivity to the specific port used by SAP S/4HANA.
telnet <S4HANA_HOSTNAME_OR_IP> <PORT_NUMBER>
# or
nc -vz <S4HANA_HOSTNAME_OR_IP> <PORT_NUMBER>4
If connectivity fails, consult with your network administrators to check firewall rules on both the adapter's host and the network infrastructure between the two systems. Ensure that the necessary ports are open for communication.
5
Once network paths are confirmed to be open, re-test the adapter's connection to SAP S/4HANA.
4. Inspect SAP Host Agent and Instance Configuration advanced
Verifies the health and correct configuration of the SAP Host Agent and the S/4HANA instance itself.
1
Log in to the SAP S/4HANA application server via SSH or console.
2
Check the status of the SAP Host Agent. The command varies slightly depending on the operating system, but generally it's:
sudo systemctl status sapsuperservice3
If the SAP Host Agent is not running, start it.
sudo systemctl start sapsuperservice4
Examine the SAP S/4HANA instance profile parameters, particularly those related to network communication and gateway services. This can be done using transaction `RZ10` or by directly inspecting the profile files in the instance's `config` directory.
5
Verify that the gateway parameters (e.g., `gw/acl_file`, `gw/listen`, `gw/registration_required`) are correctly set and do not restrict incoming connections from the adapter's source.
6
Restart the SAP S/4HANA instance if any profile changes are made or if the Host Agent was restarted.
7
Check the gateway logs (`dev_rd`) on the S/4HANA application server for detailed error messages that might indicate the cause of the invalid adapter location.