How To Fix ESH_OM_OBJ_MODEL_REP736 - RFC failure &1 when trying to connect to &2

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_OM_OBJ_MODEL_REP - Object Model Repository

• Message number: 736

• Message text: RFC failure &1 when trying to connect to &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_OM_OBJ_MODEL_REP736 - RFC failure &1 when trying to connect to &2 ?

  The SAP error message ESH_OM_OBJ_MODEL_REP736 indicates an RFC (Remote Function Call) failure when trying to connect to a specific system or service. This error typically arises in the context of SAP's Enterprise Search or Object Model services, and it can be caused by various issues related to connectivity, configuration, or authorization.
  Possible Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system (&2 in the error message).
  RFC Destination Configuration: The RFC destination may not be correctly configured in the SAP system. This includes incorrect connection parameters, such as the target host, system number, or client.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to access the target system.
  Service Availability: The target system may be down or the specific service you are trying to access may not be available.
  Firewall Restrictions: Firewalls or security settings may be blocking the connection between the two systems.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or telnet to verify that the target system is reachable from the SAP system.
  Ensure that there are no network outages or issues.
  
  
  
  Verify RFC Destination:
  
  Go to transaction SM59 in the SAP GUI and check the configuration of the RFC destination that corresponds to &2.
  Test the connection using the "Connection Test" button in the RFC destination configuration.
  
  
  
  Review User Authorizations:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations to access the target system.
  Check the roles and profiles assigned to the user.
  
  
  
  Check Target System Status:
  
  Ensure that the target system is up and running and that the required services are active.
  If applicable, check the logs of the target system for any errors.
  
  
  
  Firewall and Security Settings:
  
  Verify that there are no firewall rules or security settings that are preventing the connection.
  Consult with your network/security team if necessary.
  
  
  
  Review SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SM59 for managing RFC destinations.
  ST22 for analyzing dumps that may provide more context on the error.
  SM21 for checking system logs for any related error messages.
  
  
  
  SAP Documentation: Refer to the official SAP documentation for more details on RFC connections and troubleshooting.
  
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance, providing them with the error details and any relevant logs.