Error
Error Code:
615
SAP S/4HANA Error 615: Remote API Connection Missing
Description
This error indicates that an API call or integration attempt within SAP S/4HANA failed because it referenced a remote system connection that does not exist. It typically occurs when the system tries to communicate with an external service or another SAP system via an undefined or inaccessible connection.
Error Message
ERR_API_REMOTE_CONNECTION_DOES_NOT_EXIST
Known Causes
4 known causesConnection Not Configured
The required remote connection parameters and definitions were never properly set up in the SAP S/4HANA system.
Connection Deleted or Renamed
An existing remote connection definition was either removed from the system or its technical name was altered, making it unreachable by the API.
Incorrect Connection Reference
The API call or integration logic is attempting to use a connection name that contains a typo or does not precisely match any defined remote connection.
Incomplete Transport
The configuration for the remote connection was not fully or correctly transported between different SAP system landscapes (e.g., development to production).
Solutions
3 solutions available1. Verify RFC Destination Configuration in SAP GUI easy
Ensures the critical RFC destination used by S/4HANA for remote API calls is correctly configured and active.
1
Log in to your SAP S/4HANA system using SAP GUI.
2
Navigate to transaction SM59 (Display and Maintain RFC Destinations).
3
In the 'RFC Destinations' tree, locate the relevant destination type. For remote API connections, this is typically 'T' (TCP/IP Connections) or 'G' (Registered Servers).
4
Identify the specific RFC destination name that is causing the 'ERR_API_REMOTE_CONNECTION_DOES_NOT_EXIST' error. This name is usually mentioned in the surrounding error logs or application context.
5
Double-click on the identified RFC destination to display its details.
6
Verify that the 'Activation Type' is correctly set (e.g., 'Start on Explicit Host' for TCP/IP, or 'Registered' for registered servers).
7
Ensure that the 'Program ID' (for registered servers) or 'Gateway Host' and 'Gateway Service' (for TCP/IP) are correctly specified and match the configuration on the remote system.
8
Click the 'Connection Test' button. If the connection fails, examine the error messages provided by SM59 for further clues.
9
If the connection test fails, adjust the parameters (e.g., Program ID, Gateway Host/Service) based on the remote system's configuration and re-test.
10
For registered servers, ensure the corresponding RFC server program is running on the remote host and registered with the specified Program ID.
2. Validate Remote Server and Gateway Availability medium
Confirms that the remote server hosting the API endpoint and the SAP Gateway are reachable and operational.
1
Identify the 'Gateway Host' and 'Gateway Service' from the RFC destination details in SM59 (as described in Solution 1).
2
From a server that can access the SAP S/4HANA system (e.g., the application server itself or a client machine with network access), attempt to ping the 'Gateway Host'.
ping <gateway_host>3
If ping fails, investigate network connectivity issues between the SAP S/4HANA server and the gateway host. This might involve checking firewalls, routing, or DNS resolution.
4
Check if the SAP Gateway is running on the specified 'Gateway Host'. You can typically do this by checking the SAP system's instance status or by using OS-level commands.
sapcontrol -nr <instance_number> -function GetProcessList5
If the gateway is not running, start it using the appropriate SAP administration tools or OS commands (e.g., `startsap`).
6
For TCP/IP connections, ensure that the remote API server is running and listening on the expected port. You can use tools like `netstat` on the remote server to verify.
netstat -tulnp | grep <port_number>7
If the remote API server is not running or not listening on the expected port, start the application or correct its configuration.
3. Restart SAP Gateway and Related Services easy
A quick restart can resolve transient issues with the SAP Gateway or the remote RFC server program.
1
Identify the SAP instance number for your S/4HANA system.
2
From the SAP application server's operating system, stop the SAP Gateway.
sapcontrol -nr <instance_number> -function StopGateway3
Wait for a few minutes to ensure the gateway process has completely terminated.
4
Start the SAP Gateway again.
sapcontrol -nr <instance_number> -function StartGateway5
If the error involves a registered RFC server, ensure the remote RFC server program is restarted on its respective host.
6
After restarting, re-test the RFC connection in SM59 and try the original S/4HANA operation that triggered the error.